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   Hach Company
   PO Box 389
   Loveland, CO 80539

   800-227-4224
   970-669-3050

Parameter/Range/Reagent Information

NOTE: To view a test procedure, select the link in the "Proc" column.

Alachlor

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Immunoassay Method 10202			View		Caps, flip-spout, 2/pkg , Immunoassay Reagent Set, Alachlor in Water Pocket Colorimeter II Analysis System, 18 tests , Water, Deionized 500 mL

Aluminum

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Chromazurol S Method 10215, TNTplus 848	0.02 to 0.50 mg/L Al		View		Aluminum Standard Solutions as Al (NIST), 10 mg/L, Bottle/100 mL , Aluminum Standard Solutions as Al (NIST), 100 mg/L, Bottle/100 mL , Aluminum Standard Solutions as Al (NIST), 50 mg/L, pk/16 - 10 mL Voluette� Ampules (NIST) , Aluminum TNTplus (0.02-0.50 mg/L), 24 Tests , Nitric Acid (500 mL) , Sample Blank Vials for TNTplus, 5/pk , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L
Aluminon Method 8012	0.008 to 0.800 mg/L		View		Aluminum Standard Solutions as Al (NIST), 10 mg/L, Bottle/100 mL , Aluminum Standard Solutions as Al (NIST), 100 mg/L, Bottle/100 mL , Aluminum Standard Solutions as Al (NIST), 50 mg/L, pk/16 - 10 mL Voluette� Ampules (NIST) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Aluminum Reagent Set, AluVer� 3, 100/test , Aluminum Reagent, AluVer� 3, pk/100 Powder Pillows , Ascorbic Acid, pk/100, Powder Pillows , Bleaching 3 Reagent, pk/100 Powder Pillows , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , m-Nitrophenol Indicator Solution 100 mL DB , Nitric Acid Solution, 1:1 500 mL , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB
Eriochrome Cyanine R Method 8326	0.002 to 0.250 mg/L Al³⁺		View		Water, Deionized 500 mL , Aluminum Standard Solutions as Al (NIST), 10 mg/L, Bottle/100 mL , Aluminum Standard Solutions as Al (NIST), 100 mg/L, Bottle/100 mL , Aluminum Standard Solutions as Al (NIST), 50 mg/L, pk/16 - 10 mL Voluette� Ampules (NIST) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Nitric Acid Solution, 1:1 500 mL , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Aluminum Reagent Set, Eriochrome Cyanine R (ECR) Method, 10 mL sample, 100 tests , Bromphenol Blue Indicator Solution, 100 mL MDB , ECR Masking Reagent 25 mL SCDB , ECR REAGENT PWD PLW 20ML PK/100 , Hexamethylenetetramine Buffer Reagent, pk/100 Powder Pillows , Potassium Hydroxide Standard Solutions 1.0 N 50 mL SCDB , Potassium Hydroxide Standard Solutions 12.0 N 100 tests MDB

Arsenic

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Silver Diethyldithiocarbamate Method 8013	0 to 0.200 mg/L As		View		Water, Deionized 4 L , Arsenic Standard Solution as As, 1000 mg/L, Bottle/100 mL , Hydrochloric Acid 500 mL , Lead Acetate Solution 10% 100 mL , POTASSIUM IODIDE SOLN, 20% 100ML , Pyridine 500 mL , Silver Diethyldithiocarbamate 25 g , Stannous Chloride Solution 100 mL , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Zinc, 20 Mesh, 454 g, ACS Grade

Atrazine

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Immunoassay Method 10050			View		Caps, flip-spout, 2/pkg , Water, Deionized 500 mL , Immunoassay Reagent Set, Atrazine in Water Pocket Colorimeter II Analysis System, 100 Tests , Immunoassay Reagent Set, Atrazine in Water, 20 Tests

Barium

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Turbidimetric Method 8014	2 to 100 mg/L		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Nitric Acid Solution, 1:1 500 mL , Barium Reagent, BariVer� 4, pk/100 Powder Pillows , Barium Standard Solutions as Ba (NIST), 1000 mg/L, 100 mL

Biochemical Oxygen Demand (BOD)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Dilution Method 8043			View		Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Starch Indicator Solution, 100 mL MDB , Sodium Thiosulfate Standard Solutions 0.025 N 1 L , POTASSIUM PERMANGANATE, 454G , Sodium Hydroxide (Pellets) 500 g , BOD Nutrient Buffer Pillows, 19 liter, 25/pk , BOD Nutrient Buffer Pillows, 3 liter, 50/pk , BOD Nutrient Buffer Pillows, 4 liter, 50/pk , BOD Nutrient Buffer Pillows, 6 liter, 50/pk , BOD Standard Solutions, 300 mg/L, pk/16 - 10-mL Voluette� Ampule , Ferric Chloride Solution for BOD, 1 L , Nitrification Inhibitor for BOD, Formula 2533(TM), TCMP, 35 g , Potassium Iodide Solutions (NIST) 500 mL , Sulfuric Acid Standard Solutions, 0.020 N, Bottle/1 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/1 L , Calcium Chloride Solution, 500 mL , BOD Seed Inoculum, POLYSEED, 50 capsules/pk , BOD Standard Solutions, 3000 mg/L, pk/16 - 10-mL Voluette� Ampule , Buffer Solution, Phosphate, pH7.2, for BOD, 500 mL , Magnesium Sulfate Solution, 500 mL , Nitrification Inhibitor for BOD, Formula 2533(TM), TCMP, 500 g
Dilution Method 10230			View		Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Starch Indicator Solution, 100 mL MDB , Sodium Thiosulfate Standard Solutions 0.025 N 1 L , Sodium Hydroxide (Pellets) 500 g , BOD Nutrient Buffer Pillows, 19 liter, 25/pk , BOD Nutrient Buffer Pillows, 3 liter, 50/pk , BOD Nutrient Buffer Pillows, 4 liter, 50/pk , BOD Nutrient Buffer Pillows, 6 liter, 50/pk , BOD Standard Solutions, 300 mg/L, pk/16 - 10-mL Voluette� Ampule , Ferric Chloride Solution for BOD, 1 L , Nitrification Inhibitor for BOD, Formula 2533(TM), TCMP, 35 g , Potassium Iodide Solutions (NIST) 500 mL , Sulfuric Acid Standard Solutions, 0.020 N, Bottle/1 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/1 L

Boron

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Carmine Method 8015	0.2 to 14.0 mg/L		View		Water, Deionized 4 L , Boron Standard Solutions as B (NIST), 1000 mg/L, 100 mL , BoroVer� 3 Reagent, pk/100 Powder Pillows , Sulfuric Acid, Conc. ACS Grade, 2.5 L

Bromine

Method	Range	EDL	Proc.	Approved	Reagent Ordering
DPD Method 8016	0.05 to 4.50 mg/L		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Dilution Water, Organic Free 500 mL , DPD Total Chlorine Reagent Powder Pillows, 10 mL sample, PK/300 , DPD Total Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/100 , DPD Total Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/1000 , DPD Total Chlorine Reagent, AccuVac� Ampules, PK/25 , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB

Cadmium

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Cadion Method 10217, TNTplus 852	0.02 to 0.30 mg/L Cd		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Cadmium Standard Solutions as Cd (NIST), 100 mg/L, Bottle/100 mL , Cadmium TNTplus (0.02-0.30 mg/L), 25 tests , Calcium Separation Set (for TNT852), 25 tests , Metals Prep Set TNTplus (50 digestions)
Dithizone Method 8017	0 to 80.0 �g/L		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Cadmium Standard Solutions as Cd (NIST), 100 mg/L, Bottle/100 mL , Buffer Solution, for Heavy Metals Citrate Type, pk/100 Powder Pillows , Cadmium Reagent Set, 100 tests (No Air Shipments) , Chloroform 4 L (No Air Shipments) , Chloroform 500 mL , DithiVer� Metals Reagent Powder Pillows 100 , Sodium Hydroxide Solution, 50%, 100 mL

Chemical Oxygen Demand (COD)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Manganese III Reactor Digestion Method 10067	30 to 1000 mg/L COD Mn		View		Water, Deionized 4 L , Sulfuric Acid, Conc. ACS Grade, 2.5 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Potassium Acid Phthalate 500 g , COD Standard Solution (NIST), 1000 � 50 mg/L as COD, Bottle/200 mL , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/200 mL , Oxygen Demand Quality Control Standard, pk/16 - 10 mL Voluette� Ampule , COD Standard Solution (NIST), 800 mg/L as COD � 40 mg/L, Bottle/200 mL , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/500 mL , Chloride QuanTab� Test Strips, 30-600 mg/L, 40 tests , COD Digestion Vials, Manganese III, 20-1000 mg/L, pk/25 , Manganese III Chloride Removal Cartridges, pk/25
Manganese III Reactor Digestion Method 10067	30 to 1000 mg/L COD Mn		View		Water, Deionized 4 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Potassium Acid Phthalate 500 g , COD Standard Solution (NIST), 1000 � 50 mg/L as COD, Bottle/200 mL , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/200 mL , Oxygen Demand Quality Control Standard, pk/16 - 10 mL Voluette� Ampule , COD Standard Solution (NIST), 800 mg/L as COD � 40 mg/L, Bottle/200 mL , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/500 mL , Chloride QuanTab� Test Strips, 30-600 mg/L, 40 tests , COD Digestion Vials, Manganese III, 20-1000 mg/L, pk/25
Reactor Digestion Method 8000, TNTplus 821, TNTplus 822	LR (3-150 COD); HR (20-1500 mg/L COD)		View		Water, Deionized 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Potassium Acid Phthalate 500 g , COD Standard Solution (NIST), 1000 � 50 mg/L as COD, Bottle/200 mL , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/200 mL , Oxygen Demand Quality Control Standard, pk/16 - 10 mL Voluette� Ampule , COD Standard Solution (NIST), 800 mg/L as COD � 40 mg/L, Bottle/200 mL , ez COD Recycling Service (20-gallon size) , ez COD Recycling Service (5-gallon mail-back) , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/500 mL , TNTplus Chemical Oxygen Demand (COD) Reagent, High Range (20-1500 mg/L), 25 tests , TNTplus Chemical Oxygen Demand (COD) Reagent, Low Range (3-150 mg/L), 25 tests
Reactor Digestion Method 8000	0.7 to 40.0 mg/L COD; 3 to 150 mg/L COD; 20 to 1500 mg/L COD; 200 to 15,000 mg/L COD		View		Water, Deionized 500 mL , Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Potassium Acid Phthalate 500 g , COD Standard Solution (NIST), 1000 � 50 mg/L as COD, Bottle/200 mL , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/200 mL , Oxygen Demand Quality Control Standard, pk/16 - 10 mL Voluette� Ampule , COD Standard Solution (NIST), 800 mg/L as COD � 40 mg/L, Bottle/200 mL , ez COD Recycling Service (20-gallon size) , ez COD Recycling Service (5-gallon mail-back) , COD Digestion Vials, High Range Plus, 200 to 15,000 mg/L COD, pk/150 , COD Digestion Vials, High Range Plus, 200 to 15,000 mg/L COD, pk/25 , COD Digestion Vials, High Range, 20 to 1,500 mg/L COD, pk/150 , COD Digestion Vials, High Range, 20 to 1,500 mg/L COD, pk/25 , COD Digestion Vials, Low Range, 3 to 150 mg/L COD, pk/25 , COD Digestion Vials, Low Range, 3 to 150 mg/L COD, pk/150 , COD Digestion Vials, Ultra Low Range, 1 to 40 mg/L COD, pk/150 , COD Digestion Vials, Ultra Low Range, 1 to 40 mg/L COD, pk/25 , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/500 mL , COD2 Digestion Vials, Dichromate, High Range, 20 to 1500 mg/L COD, mercury-free, pk/25 , COD2 Digestion Vials, Dichromate, High Range, 20 to 1500 mg/L COD, mercury-free, pk/150 , COD2 Digestion Vials, Dichromate, Low Range, 3 to 150 mg/L COD, Mercury-free, pk/25 , COD2 Digestion Vials, Dichromate, Ultra High Range, 200 to 15000 mg/L COD, mercury-free pk/25 , Mercuric Sulfate 28.3 g , TNTplus Chemical Oxygen Demand (COD) Reagent, High Range (20-1500 mg/L), 25 tests , TNTplus Chemical Oxygen Demand (COD) Reagent, Low Range (3-150 mg/L), 25 tests
Reactor Digestion Method 10212, TNTplus 823	UHR 250-15,000 mg/L COD		View		Water, Deionized 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Potassium Acid Phthalate 500 g , COD Standard Solution (NIST), 1000 � 50 mg/L as COD, Bottle/200 mL , COD Standard Solution (NIST), 800 mg/L as COD � 40 mg/L, Bottle/200 mL , ez COD Recycling Service (20-gallon size) , ez COD Recycling Service (5-gallon mail-back) , TNTplus Chemical Oxygen Demand (COD) Reagent, Ultra High Range (200-15,000 mg/L), 25 tests
Reactor Digestion Method 10211, TNTplus 820	ULR 1-60 mg/L COD		View		Water, Deionized 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Potassium Acid Phthalate 500 g , COD Standard Solution (NIST), 1000 � 50 mg/L as COD, Bottle/200 mL , COD Standard Solution (NIST), 800 mg/L as COD � 40 mg/L, Bottle/200 mL , ez COD Recycling Service (20-gallon size) , ez COD Recycling Service (5-gallon mail-back) , TNTplus Chemical Oxygen Demand (COD) Reagent, Ultra Low Range (1-60 mg/L), 24 tests
Mercury-Free Reactor Digestion Method 10236, TNTplus 825	HR (25 to 1000 mg/L COD)		View		Water, Deionized 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Potassium Acid Phthalate 500 g , COD Standard Solution (NIST), 1000 � 50 mg/L as COD, Bottle/200 mL , COD Standard Solution (NIST), 300 � 15 mg/L, Bottle/200 mL , Mercury-Free Chemical Oxygen Demand (COD) TNTplus, 25 tests , Oxygen Demand Quality Control Standard, pk/16 - 10 mL Voluette� Ampule

Chloride

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Mercuric Thiocyanate Method 8113	0.1 to 25.0 mg/L Cl-		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Chloride Reagent Set, Mercuric Thiocyanate Method, 10 mL sample, 100/tests , Chloride Standard Solutions as Cl-(NIST) 100 mg/L, 1 L , Chloride Standard Solutions as Cl-(NIST) 12,500 mg/L, 16/Voluette� Ampules , Ferric Ion Solution 100 mL , Mercuric Thiocyanate Solution 200 mL , Perchloric Acid, 70% ACS, 500 mL , Sodium Chloride Standard Solutions (NIST) 1000 mg/L 500 mL

Chlorine, Free

Method	Range	EDL	Proc.	Approved	Reagent Ordering
DPD Rapid Liquid Method 10059	0.02 to 2.00 mg/L		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Chlorine, DPD Compound, Free & Total, 24 g , Chlorine, Free, Buffer Solution, 473 mL , Chlorine, Free, Indicator Solution, 473 mL , Free Chlorine Reagent Set, CL17 Process Analyzer , Sulfuric Acid Standard Solutions, 5.25 N, Bottle/1 L
DPD Method 8021	0.02 to 2.00 mg/L		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Dilution Water, Organic Free 500 mL , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , DPD Free Chlorine Reagent Powder Pillows, 10 mL sample, PK/300 , DPD Free Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/1000 , Blank AccuVac� Ampules, pk/25 , DPD Free Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/100 , DPD Free Chlorine Reagent, 10 mL Sample, SwifTest(TM) Dispenser, 250 Tests , DPD Free Chlorine Reagent, 10 mL, SwifTest(TM) Dispenser Refill Vial, 250 Tests , DPD Free Chlorine Reagent, AccuVac� Ampules, PK/25 , SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR
DPD Method 8021	0.02 to 2.00 mg/L as Cl₂		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Dilution Water, Organic Free 500 mL , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , DPD Free Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/1000 , DPD Free Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/100 , DPD Free Chlorine Reagent, 10 mL Sample, SwifTest(TM) Dispenser, 250 Tests , DPD Free Chlorine Reagent, 10 mL, SwifTest(TM) Dispenser Refill Vial, 250 Tests , SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR
Amperometric Buret Titration Method 8334	0.5 mg/L and above		View		Water, Deionized 500 mL , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Buffer, for Amperometric Chlorine, 100 mL MDB (phosphate type, pH 7, APHA) , Phenylarsine Oxide (PAO) Standard Solutions 0.00564 N 1 L
DPD Method 10069	HR 0.1 to 10.0 mg/L as Cl2		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , DPD Free Chlorine Reagent, 25 mL Sample, Powder Pillows, PK/100 , DPD Free Chlorine Reagent Powder Pillows, 10 mL sample, PK/300 , DPD Free Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/1000 , SpecCheck Secondary Standards Kit, DPD Chlorine - HR
Amperometric Forward Titration using 0.00564 N PAO Method 10024	0 to 1000 �g/L Chlorine as Cl2		View		Water, Deionized 4 L , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Buffer, for Amperometric Chlorine, 100 mL MDB (phosphate type, pH 7, APHA) , Phenylarsine Oxide (PAO) Cartridges for Digital Titrator, 0.00564 N
	0.09 to 5.00 mg/L		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , DPD Free Chlorine Reagent, 10 mL Sample, Test 'N Tube Vials, PK/50
DPD Method 8167			View
Freechlor F Method 10241	0.04 to 4.50 mg/L Cl2		View		Freechlor F Reagent Solution, 50 mL

Chlorine, Total

Method	Range	EDL	Proc.	Approved	Reagent Ordering
DPD Rapid Liquid Method 10060	0.02 to 2.00 mg/L		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Chlorine, DPD Compound, Free & Total, 24 g , Sulfuric Acid Standard Solutions, 5.25 N, Bottle/1 L , Chlorine, Total, Buffer Solution, 473 mL , Chlorine, Total, Indicator Solution, 473 mL , Total Chlorine Reagent Set for the CL17 Process Analyzer
DPD Method 10101	0.09 to 5.00 mg/L		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , DPD Total Chlorine Reagent, 10 mL Sample, Test 'N Tube Vials, PK/50
DPD Method 10070	HR 0.1 to 10.0 mg/L as Cl2		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , DPD Total Chlorine Reagent, 25 mL Sample, Powder Pillows, PK/100 , DPD Total Chlorine Reagent, 25 mL Sample, Powder Pillows, PK/1000
DPD Method 10014	ULR 2 to 500 �g/L as Cl₂		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sulfuric Acid Standard Solutions, 5.25 N, Bottle/1 L , BLANKING REAGENT, 29ML , Buffer Solution, Ultra-Low Range Chlorine, pk/20 1.5 mL Ampules , Chlorine Reagent Set (Total), Ultra Low Range , DPD Chlorine Indicator Solution, Ultra-Low Range, 1.5 mL Ampules, PK/20
DPD Method 8370	ULR 2 to 500 �g/L as Cl₂		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sulfuric Acid Standard Solutions, 5.25 N, Bottle/1 L , BLANKING REAGENT, 29ML , Buffer Solution, Ultra-Low Range Chlorine, pk/20 1.5 mL Ampules , Chlorine Reagent Set (Total), Ultra Low Range , DPD Chlorine Indicator Solution, Ultra-Low Range, 1.5 mL Ampules, PK/20
Idometric Method 10100	HR (50 to 150 g/L) as Cl2 (5 to 15%)		View		Acid Reagent Powder Pillow for 25ML Samples, PK/100 , Potassium iodide pwd plws pk/50 , Potassium Iodide-Iodate Standard Solutions 0.0125 N 1 L , Sodium Thiosulfate, Stabilized, Cartridges, for Digital Titrator 2.26 N , Starch Indicator Solution, 100 mL MDB
Amperometric Back Titration Method 10025	6 to 1000 �g/L Chlorine as Cl₂		View		Water, Deionized 4 L , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Acetate Buffer Solution, pH 4.0, 100 mL , Iodide Standard Solution Cartridge for Digital Titrator, 0.0282 N , Potassium Iodide Powder Pillows, PK/100 , Sodium Thiosulfate, Stabilized, Standard Solutions 0.00564 N 100 mL
Amperometric Forward Titration Method 10026	15 to 1000 �g/L Chlorine as Cl₂		View		Water, Deionized 4 L , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Phenylarsine Oxide (PAO) Cartridges for Digital Titrator, 0.00564 N , Acetate Buffer Solution, pH 4.0, 100 mL , Potassium Iodide Powder Pillows, PK/100
Iodometric Method 8161	0 to 40,000 mg/L		View		Water, Deionized 4 L , Starch Indicator Solution, 100 mL MDB , Potassium Iodide Powder Pillows, PK/100 , Dissolved Oxygen 3 Reagent, 60mL sample, pk/100 Powder Pillows , Sodium Thiosulfate Standard Solutions 0.025 N 1 L , Sodium Thiosulfate Standard Solutions 0.1 N 1 L
Amperometric Buret Titration Method	0.5 mg/L and above		View		Water, Deionized 500 mL , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Phenylarsine Oxide (PAO) Standard Solutions 0.00564 N 1 L , Acetate Buffer Solution, pH 4.0, 100 mL , Potassium Iodide Powder Pillows, PK/100 , Chlorine (Total) Reagent Sets 100 tests
Iodometric Method 8209	1 to 400 mg/L or 20 to 70,000 mg/L Cl₂		View		Water, Deionized 500 mL , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Potassium iodide pwd plws pk/50 , Starch Indicator Solution, 100 mL MDB , Acetate Buffer Solution, pH 4.0, 100 mL , Potassium Iodide Powder Pillows, PK/100 , Dissolved Oxygen 3 Reagent, 60mL sample, pk/100 Powder Pillows , Chlorine (Total) Reagent Sets 100 tests , Chlorine (Total) Reagent Sets 100 tests , Sodium Thiosulfate Cartridges for Digital Titrator 0.1130 N , Sodium Thiosulfate Cartridges for Digital Titrator 2.00 N , Sodium Thiosulfate, Stabilized, Cartridges, for Digital Titrator 0.02256 N

Chlorine Dioxide

Method	Range	EDL	Proc.	Approved	Reagent Ordering
DPD Method 10126	0.04 to 5.00 mg/L		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Dilution Water, Organic Free 500 mL , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , DPD Free Chlorine Reagent Powder Pillows, 10 mL sample, PK/300 , DPD Free Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/1000 , Blank AccuVac� Ampules, pk/25 , DPD Free Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/100 , DPD Free Chlorine Reagent, AccuVac� Ampules, PK/25 , Chlorine Dioxide DPD/Glycine AccuVac� Ampule Reagent Set, 25/test , Chlorine Dioxide Reagent Set, 10 mL Sample, 100/test , Glycine Reagent 29 mL
Direct Reading Method 8138	HR 5 to 1000 mg/L		View		Water, Deionized 4 L
Chlorophenol Red Method 8065	LR 0.01 to 1.00 mg/L		View		Chlorine Dioxide Reagent 1 100 mL , Chlorine Dioxide Reagent 2 100 mL , Chlorine Dioxide Reagent 3 100 mL , Chlorine Dioxide Reagent Set, LR, 100/test , Dechlorinating Reagent Powder Pillows 100
Amaranth Method	20 to 500 �g/L		View		Dilution Water, Organic Free 500 mL
Direct Reading Method	MR 1 to 50 mg/L		View		Water, Deionized 4 L

Chromium

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Titration Method 8211	20 to > 400 mg/L as CrO₄²^-		View		Water, Deionized 500 mL , Potassium iodide pwd plws pk/50 , Starch Indicator Solution, 100 mL MDB , Dissolved Oxygen 3 Reagent, 60mL sample, pk/100 Powder Pillows , CDTA Disodium Magnesium Salt 100 , Chromate Reagent Set 100 tests , Chromium Standard Solution, 50 mg/L, Bottle/100 mL , Chromium, Hexavalent, Standard Solutions as Cr6+ (NIST), 1000 mg/L, Bottle/100 mL , SODIUM THIOSULFATE, 0.2068N CRTG , Sulfuric Acid, ACS Grade, 500 mL
1,5-Diphenylcarbohydrazide Method 8203	0.010 to 0.700 mg/L Cr⁶⁺		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Chromium Standard Solution, 50 mg/L, Bottle/100 mL , Acid Reagent Powder Pillows 100 tests , Chromium Reagent Set, ChromaVer�, AccuVac� Ampules, pk/25 , Chromium Reagent, ChromaVer� 3, Hexavalent, 5 mL or 10 mL sample, pk/100 Powder Pillow , Chromium, Hexavalent, Standard Solutions as Cr6+ (NIST), pk/16 - 10 mL Voluette� Ampule
Alkaline Hypobromite Oxidation Method 8024	0.01 to 0.70 mg/L Cr		View		Acid Reagent Powder Pillows 100 tests , Chromium, Trivalent, Standard Solutions as Cr3+ (NIST) 50 mg/L, Bottle/100 mL , Chromium 1 Reagent, pk/100 Powder Pillows , Chromium 2 Reagent, pk/100 Powder Pillows , Chromium Reagent, ChromaVer� 3, Hexavalent, 25 mL sample, pk/100 Powder Pillows , Chromium Total Reagent Set, 25 mL sample, 100/tests (Colorimetric Method)
1,5-Diphenylcarbohydrazide Method 10218, 10219, TNTplus 854	0.03 to 1.00 mg/L Cr		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Chromium Standard Solution, 50 mg/L, Bottle/100 mL , Chromium TNTplus (0.03-1.0 mg/L), 25 tests , Chromium, Trivalent, Standard Solutions as Cr3+ (NIST) 50 mg/L, Bottle/100 mL

Cobalt

Method	Range	EDL	Proc.	Approved	Reagent Ordering
1-(2-Pyridylazo)-2-Naphthol (PAN) Method 8028	0.01 to 2.00 mg/L		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Nitric Acid Solution, 1:1 500 mL , Cobalt / Nickel Reagent Set, PAN Method, 10-mL sample, 100 tests , Cobalt Standard Solution as Co 1000 mg/L 100 mL (NIST) , EDTA REAGENT PWD PLWS PK/100 , PAN Indicator Solutions 100 mL , Phthalate-phosphate pp, pk/100

Coliforms, Membrane Filtration (2)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Membrane Filtration Method 8026			View		Dechlorinating Reagent Powder Pillows 100 , Bottle, Sampling, Presterilized, Round, 12/pk , Bottle, Sampling, Presterilized, Round, 50/pk , Bottle, Sampling, Presterilized, with Dechlorinating Agent, 12/pk , Bottle, Sampling, Presterilized, with Dechlorinating Agent, 50/pk , BUFFER DILUTION WATER PLWS PK/25 , Isopropyl Alcohol 500 mL , Magnesium Chloride/Potassium Phosphate Buffer, 99 mL, pk/25 , Sterilization Indicator, Sterikon�, 15/pk , Pseudomonas Broth, Plastic Ampules, pk/50
Membrane Filtration Method 1600			View		Dechlorinating Reagent Powder Pillows 100 , BILE ESCULIN AGAR 500GM , Bottle, Sampling, Presterilized, Round, 12/pk , Bottle, Sampling, Presterilized, Round, 50/pk , Bottle, Sampling, Presterilized, with Dechlorinating Agent, 12/pk , Bottle, Sampling, Presterilized, with Dechlorinating Agent, 50/pk , BRAIN HEART INFUSION AGAR, 500G , BRAIN HEART INFUSION BROTH 500GM , BUFFER DILUTION WATER PLWS PK/25 , Isopropyl Alcohol 500 mL , Magnesium Chloride/Potassium Phosphate Buffer, 99 mL, pk/25 , m-ColiBlue24� Broth, 100mL Bottle (50 test) , m-EI prepared agar plates, pk/15 , Sterilization Indicator, Sterikon�, 15/pk

Coliforms, Paddle Testers

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Total Aerobic Bacteria (Amber)/Yeast and Mold (Red) Total Aerobic Bacteria (Amber)/Total Coliform (Red) Total Aerobic Bacteria (Amber)/Disinfection Control (Purple)			View		Dechlorinating Reagent Powder Pillows 100 , Bottle, Sampling, Presterilized, Round, 12/pk , Bottle, Sampling, Presterilized, Round, 50/pk , Bottle, Sampling, Presterilized, with Dechlorinating Agent, 12/pk , Bottle, Sampling, Presterilized, with Dechlorinating Agent, 50/pk , Sterilization Indicator, Sterikon�, 15/pk , Paddle Tester, Total Aerobic Bacteria/Disinfection Control, pk/10 , Paddle Tester, Total Aerobic Bacteria/Total Coliforms, pk/10 , Paddle Tester, Total Aerobic Bacteria/Yeast and Mold, pk/10

Color

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Platinum-Cobalt Standard Method 8025	15 to 500 units		View		Water, Deionized 4 L , Color Standard Solution, 500 Pt Co Units, 1 liter , Color Standard Solution, 15 Pt Co Units, 1 liter , Color Standard Solution, 500 Pt Co Units, pk/16 - 10-mL Voluette� Ampules , Hydrochloric Acid Standard Solutions 1.0 N, 1.0 M 1 L , Sodium Hydroxide Standard Solutions 1.000 N 900 mL
ADMI Weighted Ordinate Method 10048	5 to 250 units Pt-Co		View		Water, Deionized 4 L , Color Standard Solution, 500 Pt Co Units, 1 liter , Sodium Hydroxide Standard Solutions 0.100 N 1 L , Sodium Hydroxide Standard Solutions 10 N 500 mL , Sulfuric Acid Standard Solutions, 10 N, Bottle/1 L , SULFURIC ACID, 0.100N 100ML MDB
Platinum-Cobalt Standard Method 8025	LR 3-200 units		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Color Standard Solution, 500 Pt Co Units, 1 liter , Color Standard Solution, 15 Pt Co Units, 1 liter , Hydrochloric Acid Standard Solutions 1.0 N, 1.0 M 1 L , Sodium Hydroxide Standard Solutions 1.000 N 900 mL

Conductivity

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Gravimetric Method 8163			View		Water, Deionized 4 L , Ammonium Hydroxide 500 mL
Direct Measurement Method 8160	0.01 �S/cm to 200.00 mS/cm		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , 1000 �S/cm Conductivity Standard; 491 mg/L NaCl, 100 mL , 18,000 �S/cm Conductivity Standard; 10,246 mg/L NaCl; 100 mL , 180 �S/cm Conductivity Standard; 85.47 mg/L NaCl, 100 mL , 1990 �S/cm Conductivity Standard; (995 mg/L TDS, 1000 mg/L NaCl), 100 mL , Gallic Acid Solution 50 mL SCDB , KCl 0.01D Conductivity Standard, 500 mL, 0.01 Demal KCl, 1408 �S/cm at 25 �C (Radiometer Analytical) , KCl 0.1D Conductivity Standard, 500 mL, 0.1 Demal KCl, 12, 85 mS/cm at 25 �C (Radiometer Analytical) , KCl 1D Conductivity Standard, 500 mL, 1 Demal KCl, 111, 3 mS/cm at 25 �C (Radiometer Analytical) , KS910 KCl Solution, 0.1M, 500 mL, 12.88 mS/cm at 25 �C (Radiometer Analytical) , KS920 KCl Solution, 0.01M, 500 mL, 1.413 mS/cm at 25 �C (Radiometer Analytical) , KS930 KCl Solution, 0.001M 500 mL, 148 �S/cm at 25 �C (Radiometer Analytical) , NaCl 0.05% Conductivity Standard, 500 mL, 0.05% NaCl, 1015 �S/cm at 25 �C (Radiometer Analytical) , Phenolphthalein Indicator Solution, 5 g/L, 15 mL SCDB (APHA)

Copper

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Bicinchoninate Method 8506, 8026	0.04 to 5.00 mg/L		View		Nitric Acid (500 mL) , Copper Reagent Sets, Free and Total, 100 tests , Copper Reagent, CuVer 2, 25 mL sample, pk/100 Powder Pillows , Copper Reagent, CuVer� 1, 0 to 5.0 mg/L, 10 mL sample, pk/100 Powder Pillows , Copper Reagent, CuVer� 2, 25/AccuVac� Ampules , Copper Standard Solutions as Cu (NIST), 100 mg/L, Bottle/100 mL , Copper Standard Solutions as Cu (NIST), 75 mg/L, pk/16 - 10 mL Vouette� Ampule , Formaldehyde, Solution 100 mL , Free Copper and Hydrosulfite Reagent Powder Pillows 100/pk , Hydrosulfite, 25 mL Sample, pk/100 Powder Pillows , Metals Quality Control Standard for Drinking Water, High Range, Bottle/500 mL , Metals Quality Control Standard for Drinking Water, Low Range, Bottle/500 mL , Potassium Hydroxide Standard Solutions 8.00 N 100 mL MDB
Porphyrin Method 8143	LR 1 to 210 �g/L		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Nitric Acid Solution, 1:1 500 mL , Copper Masking Reagent Powder Pillows 100 tests , Copper Reagent Set, 10 mL Sample, 100 tests , Copper Standard Solutions as Cu (NIST) 10 mg/L 100 mL MDB , Copper Standard Solutions as Cu (NIST), 4 mg/L, pk/20 - 2 mL PourRite Ampules , Porphyrin 1 Reagent Powder Pillows 50 tests , Porphyrin 2 Reagent Powder Pillows, 50 tests
Bathocuproine Method 10238, TNTplus 860	0.1 to 8.0 mg/L Cu		View		Nitric Acid (500 mL) , Water, Deionized 4 L , Metals Prep Set TNTplus (50 digestions) , Copper Standard Solutions as Cu (NIST), 100 mg/L, Bottle/100 mL , Potassium Hydroxide Standard Solutions 8.00 N 500 mL

Cyanide

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Pyridine-Pyrazalone Method 8027	0.002 to 0.240 mg/L CN ^-		View		Water, Deionized 4 L , m-Nitrophenol Indicator Solution 100 mL DB , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Starch Indicator Solution, 100 mL MDB , Cyanide Reagent Sets, 100/tests , CYANIVER 3 CYANIDE RGT PP PK/100 , CYANIVER 4 CYANIDE RGT PP PK/100 , CYANIVER 5 CYANIDE RGT PP PK/100 , Acetic Acid, Glacial, 500 mL , L-Ascorbic Acid, 100 g , Bromine Water, 29 mL , Buffer Solution, pH 4.01, 500 mL (no color code) (NIST) , Hexane 500 mL , HexaVer� Powder Pillows 100/pk , Hydrochloric Acid Standard Solutions 2.5 N 100 mL MDB , Hydrogen Sulfide Paper 100 , Magnesium Chloride Solution, 51% w/v 1 L , Sodium Hydroxide Standard Solutions 0.25 N 1 L , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Sulfuric Acid Standard Solutions, 19.2 N, Bottle/500 mL

Cyanuric Acid

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Turbidimetric Method 8139	5 to 50 mg/L		View		Water, Deionized 4 L , CYANURIC ACID 25G , Cyanuric Acid 2 Reagent Powder Pillows 50

Dissolved Oxygen

Method	Range	EDL	Proc.	Approved	Reagent Ordering
HRDO Method 8166	HR 0.3 to 15.0 mg/L O2		View		Blank AccuVac� Ampules, pk/25 , Dissolved Oxygen Reagent Set, High Range, AccuVac� Ampules, pk/25
Indigo Carmine Method 8316	LR 6 to 800 �g/L O2		View		Blank AccuVac� Ampules, pk/25 , Hydrosulfite, 25 mL Sample, pk/100 Powder Pillows , Dissolved Oxygen Reagent Set, AccuVac� Ampules, Low Range, pk/25
Ultra High Ranges Method 8333	UHR 1.0 to 40.0 mg/L O2		View		Blank AccuVac� Ampules, pk/25 , Dissolved Oxygen Reagent Set, High Range, AccuVac� Ampules, pk/25
Azide Modification of Winkler Method 8215, 8332	1 to greater than 10 mg/L		View		Starch Indicator Solution, 100 mL MDB , Sodium Thiosulfate Cartridges for Digital Titrator 2.00 N , Sodium Thiosulfate Cartridges for Digital Titrator 0.2000 N , Alkaline Iodide-Azide Reagent, Powder Pillows, pk/50 , Dissolved Oxygen 1 Reagent, 60mL sample, pk/100 Powder Pillows , Dissolved Oxygen 2 Reagent, 60mL sample, pk/100 Powder Pillows , Dissolved Oxygen 3 Reagent, 60mL sample, pk/25 Powder Pillows , Dissolved Oxygen Reagent Sets, 300 mL Sample, 50/tests , Dissolved Oxygen Standard Solution, 10 mg/L, Bottle/500 mL , Manganous Sulfate, Powder Pillows, pk/50 , Sulfamic Acid Powder Pillows 50
Azide Modification of Winkler Method 8229	1 to more than 10 mg/L DO		View		Starch Indicator Solution, 100 mL MDB , Sodium Thiosulfate Standard Solutions 0.025 N 1 L , Sulfuric Acid, ACS Grade, 500 mL , Alkaline Iodide-Azide Reagent, Powder Pillows, pk/50 , Dissolved Oxygen Standard Solution, 10 mg/L, Bottle/500 mL , Manganous Sulfate, Powder Pillows, pk/50 , Alkaline Iodide-Azide Reagent 500 mL , Copper Sulfate-Sulfamic Acid Inhibitor Solution 100 mL MDB , Copper Sulfate-Sulfamic Acid Inhibitor Solution 500 mL , Manganous Sulfate Solution 500 mL , Sodium Thiosulfate, Stabilized, Standard Solutions 0.0250 N 1 L , Sulfamic Acid, Powder Pillows, pk/100
Direct Measurement Method08157	0 to 20 mg/L or 0 to 200% saturation		View		Cobalt Standard Solution as Co 1000 mg/L 100 mL (NIST) , DO Probe (sensION) Filling Solution, 50 mL , Silica 3 Reagent Powder Pillows pk/100
Direct Measurement Method 10360	0.1 to 20.0 mg/L or 1 to 200% saturation		View

Fluoride

Method	Range	EDL	Proc.	Approved	Reagent Ordering
SPADNS Method 8029	0.02 to 2.00 mg/L F^-		View		Water, Deionized 4 L , Sodium Arsenite Solution, 5.0 g/L 100 mL , Fluoride Standard Solution as F (NIST), 1.0 mg/L, Bottle/1 L , Fluoride Standard Solution as F (NIST), 1.0 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST) 0.8 mg/L 500 mL , Fluoride Standard Solutions as F (NIST), 0.2 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 0.5 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 1.2 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 1.5 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 100 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 2.0 mg/L, Bottle/500 mL , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , SILVER SULFATE 113G , SPADNS Fluoride Reagent AccuVac� Ampules, Pkg of 25 , SPADNS Fluoride Reagent Solution, 500 mL
SPADNS 2 Method 10225	0.02 to 2.00 mg/L F^-		View		Water, Deionized 4 L , Fluoride Standard Solution as F (NIST), 1.0 mg/L, Bottle/1 L , Fluoride Standard Solution as F (NIST), 1.0 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST) 0.8 mg/L 500 mL , Fluoride Standard Solutions as F (NIST), 0.2 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 0.5 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 1.2 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 1.5 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 100 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 2.0 mg/L, Bottle/500 mL , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , SILVER SULFATE 113G , SPADNS 2 (Arsenic-free) Fluoride Reagent AccuVac� Ampules, Pkg of 25 , SPADNS 2 (Arsenic-free) Fluoride Reagent Solution, 500 mL
DIrect Measurement ISE Method 8323	0.1 to 100.0 mg/L F		View		Water, Deionized 4 L , Fluoride Standard Solution as F (NIST), 1.0 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 2.0 mg/L, Bottle/500 mL , Fluoride Standard Solution as F (NIST), 10 mg/L, Bottle/500 mL , Potassium Chloride Reference Electrolyte Gel Cartridges 2/pk
Direct Measurement ISE Method 8323	0.1 to 10.0 mg/L F^-		View		Water, Deionized 4 L , Fluoride Standard Solution as F (NIST), 1.0 mg/L, Bottle/500 mL , Fluoride Standard Solutions as F (NIST), 2.0 mg/L, Bottle/500 mL , Fluoride Standard Solution as F (NIST), 10 mg/L, Bottle/500 mL , Potassium Chloride Reference Electrolyte Gel Cartridges 2/pk , Fluoride Ionic Strength Adjustor 3.78 L , Fluoride Ionic Strength Adjustor Powder Pillows, 100/pk

Formaldehyde

Method	Range	EDL	Proc.	Approved	Reagent Ordering
MBTH Method 8110	3 to 500 �g/L CH₂O		View		Chromic Acid Cleaning Solution 500 mL , Formaldehyde Developing Solution 500 mL , Formaldehyde Standard Solution, 4000 mg/L pk/16 - 10-mL Voluette� Ampule , MBTH Powder Pillows 100 , POTASSIUM PERMANGANATE, 454G , REAGENT SET, FORMALDEHYDE LR , Sodium Hydroxide (Pellets) 500 g

Hardness

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Calmagite Colorimetric Method 8030	0.05 to 4.00 mg/L Ca and Mg as CaCO3		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Alkali Solution 100 mL MDB , Calcium/Magnesium Indicator Solution 100 mL MDB , EDTA SOLN, 1M 50ML SCDB , EGTA Solution 50 mL SCDB , Hardness (Ca/Mg) Reagent Set, 100/tests
Chlorophosphonazo Colorimetric Method 8374	8 to 1000 �g/L Ca and Mg as CaCO3		View		Calcium Standard Solutions as CaCO3 (CaCl2) 50 mg/L, 946 mL (NIST) , CDTA Reagents, Bottle/10 mL , Chlorophosphonazo Indicator Solution for ULR Hardness, 500mL , Hardness Standard Solutions as CaCO3 0.50 mg/L 946 mL (NIST) , Chlorophosphonazo Reagent Solution Pillows for ULR Hardness PK/100 , Hardness (ULR) Reagent Set, Bulk Solution , Hardness (ULR) Reagent Set, Solution Pillows, 100/PK
Chlorophosphonazo Rapid Liquid Method 8374	ULR 4 to 1000 �g/L Ca and Mg as CaCO₃		View		Calcium Standard Solutions as CaCO3 (CaCl2) 50 mg/L, 946 mL (NIST) , CDTA Reagents, Bottle/10 mL , Chlorophosphonazo Indicator Solution for ULR Hardness, 500mL , Hardness Standard Solutions as CaCO3 0.50 mg/L 946 mL (NIST) , Water, Aldehyde-Free 500 mL
Titration Method 8204	10 to 4000 mg/L as CaCO₃		View		Water, Deionized 500 mL , Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Nitric Acid Solution, 1:1 500 mL , CDTA Disodium Magnesium Salt 100 , Potassium Hydroxide Standard Solutions 8.00 N 100 mL MDB , Potassium Hydroxide Standard Solutions 8.00 N 500 mL , Bromcresol Green-Methyl Red Indicator Solution, 100 mL MDB , Calcium Indicator, CalVer� 2, 50 mL sample, pk/100 Powder Pillows , Calcuim/Hardness Standard Solutions as CaCO3, 10,000 mg/L, pk/16 (NIST) Ampules , CalVer� 2 Calcium Indicator 113 g , CDTA Titrant (HexaVer�) 1 L , EDTA Cartridge for Digital Titrator, 0.800 M , EDTA Cartridges for Digital Titrator, 0.0800 M , EDTA Cartridges for Digital Titrator, 0.1428 M , EDTA, 0.714M CRTG , Hardness (Calcium) Reagent Set for Digital Titrator, (100-4000 mg/L) 100 tests , Hardness (Calcium) Reagent Set for Digital Titrator, (10-160 mg/L) 100 tests , Hardness 2 Solution 100 mL MDB , Magnesium Standard Solutions (NIST) 10,000 � 1000 mg/L 29 mL DB , MANVER 2 HARDNESS IND PWD, 113G , Phenolphthalein Indicator Solution, 5 g/L, 100 mL MDB (APHA)
Buret Titration Method 8222	0 to 25,000 mg/L as CaCO3		View		Water, Deionized 500 mL , Nitric Acid (500 mL) , Nitric Acid Solution, 1:1 500 mL , Potassium Hydroxide Standard Solutions 8.00 N 100 mL MDB , Potassium Hydroxide Standard Solutions 8.00 N 500 mL , Calcium Indicator, CalVer� 2, 50 mL sample, pk/100 Powder Pillows , Calcuim/Hardness Standard Solutions as CaCO3, 10,000 mg/L, pk/16 (NIST) Ampules , CalVer� 2 Calcium Indicator 113 g , Magnesium Standard Solutions (NIST) 10,000 � 1000 mg/L 29 mL DB , Calcium Standard Solutions as CaCO3 (CaCl2), 1000 mg/L, Bottle/1 L (NIST) , EDTA Standard Solution, 0.0200N, 1000 mL , EDTA STD SOLN, 0.20N 500ML , Hardness (Calcium) Reagent Set (0-5000 mg/L)100 tests
Titration Method 8329	10 to 4000 mg/L as CaCO₃		View		Water, Deionized 500 mL , Nitric Acid (500 mL) , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , CDTA Disodium Magnesium Salt 100 , Potassium Hydroxide Standard Solutions 8.00 N 100 mL MDB , Calcuim/Hardness Standard Solutions as CaCO3, 10,000 mg/L, pk/16 (NIST) Ampules , CalVer� 2 Calcium Indicator 113 g , EDTA Cartridge for Digital Titrator, 0.800 M , EDTA Cartridges for Digital Titrator, 0.0800 M , MANVER 2 HARDNESS IND PWD, 113G , Calcium Standard Solutions as CaCO3 (CaCl2), 1000 mg/L, Bottle/1 L (NIST) , Calcium Indicator, CalVer� 2, pk/100 Powder Pillows , CDTA Cartridges for Digital Titrator, 0.08 M , CDTA Cartridges for Digital Titrator, 0.800 M , Hardness (Total, Calcium and Magnesium) Reagent Set, 100 tests, Digital Titrator EDTA Method , Hardness 1 Buffer Solution 100mL MDB , Hydroxylamine Hydrochloride 113 g , Manver 2 Hardness Indicator Powder Pillows, 50mL Sample, pk/100
Titration Method 8213	10 to 4000 mg/L as CaCO₃		View		Water, Deionized 500 mL , Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Nitric Acid Solution, 1:1 500 mL , CDTA Disodium Magnesium Salt 100 , Calcuim/Hardness Standard Solutions as CaCO3, 10,000 mg/L, pk/16 (NIST) Ampules , CDTA Titrant (HexaVer�) 1 L , EDTA Cartridge for Digital Titrator, 0.800 M , EDTA Cartridges for Digital Titrator, 0.0800 M , EDTA Cartridges for Digital Titrator, 0.1428 M , EDTA, 0.714M CRTG , Hardness 2 Solution 100 mL MDB , Magnesium Standard Solutions (NIST) 10,000 � 1000 mg/L 29 mL DB , MANVER 2 HARDNESS IND PWD, 113G , Calcium Standard Solutions as CaCO3 (CaCl2), 1000 mg/L, Bottle/1 L (NIST) , Hardness 1 Buffer Solution 100mL MDB , Manver 2 Hardness Indicator Powder Pillows, 50mL Sample, pk/100 , Hardness (Total) Reagent Set for Digital Titrator, (100-4000 mg/L) 100 tests , Hardness (Total) Reagent Set for Digital Titrator, (10-160 mg/L) 100 tests
ManVer 2 Buret Titration Method 8226	0 to 25,000 mg/L as CaCO₃		View		Water, Deionized 500 mL , Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Nitric Acid Solution, 1:1 500 mL , CDTA Disodium Magnesium Salt 100 , Calcuim/Hardness Standard Solutions as CaCO3, 10,000 mg/L, pk/16 (NIST) Ampules , CDTA Titrant (HexaVer�) 1 L , Hardness 2 Solution 100 mL MDB , Magnesium Standard Solutions (NIST) 10,000 � 1000 mg/L 29 mL DB , MANVER 2 HARDNESS IND PWD, 113G , Calcium Standard Solutions as CaCO3 (CaCl2), 1000 mg/L, Bottle/1 L (NIST) , EDTA Standard Solution, 0.0200N, 1000 mL , EDTA STD SOLN, 0.20N 500ML , Hardness 1 Buffer Solution 100mL MDB , Manver 2 Hardness Indicator Powder Pillows, 50mL Sample, pk/100 , Hardness (Total) Reagent Set (0-2500 mg/L), 100 tests , Hardness (Total) Reagent Set (100-25000 mg/L), 100 tests
Buret Titration Method 8338	0 to 25,000 mg/L as CaCO₃		View		Water, Deionized 500 mL , Nitric Acid (500 mL) , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , CDTA Disodium Magnesium Salt 100 , Potassium Hydroxide Standard Solutions 8.00 N 100 mL MDB , Calcuim/Hardness Standard Solutions as CaCO3, 10,000 mg/L, pk/16 (NIST) Ampules , Hardness 2 Solution 100 mL MDB , Calcium Standard Solutions as CaCO3 (CaCl2), 1000 mg/L, Bottle/1 L (NIST) , EDTA Standard Solution, 0.0200N, 1000 mL , EDTA STD SOLN, 0.20N 500ML , Calcium Indicator, CalVer� 2, pk/100 Powder Pillows , Hardness 1 Buffer Solution 100mL MDB , Hydroxylamine Hydrochloride 113 g , Hardness Indicator, ManVer 2, pk/100 Powder Pillows , REAGENT SET, HARDNESS 0-2500MG/L

Hydrogen Sulfide

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Methylene Blue Method 8131	5 to 800 �g/L		View		Water, Deionized 4 L , Bromine Water, 29 mL , Phenol Solution, 30 g/L, 29 mL , Hydrogen Sulfide Reagent Set, 0-0.600 mg/L as S2, 100 tests, Methylene Blue Method (Colorimetric) (Color Disc test: 0-2.25 mg/L) , Sulfide 1 Reagent 100 tests MDB , Sulfide 2 Reagent 100 tests MDB

Iodine

Method	Range	EDL	Proc.	Approved	Reagent Ordering
DPD Method 8031	0.07 to 7.00 mg/L		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , DPD Total Chlorine Reagent, 10 mL Sample, Powder Pillows, PK/100 , DPD Total Chlorine Reagent, AccuVac� Ampules, PK/25 , Potassium Iodide Solutions (NIST) 100 tests MDB , Sodium Arsenite Solution, 5.0 g/L 100 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB

Iron

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Ferrozine Method 8147	0.009 to 1.400 mg/L		View		Nitric Acid (500 mL) , Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Metals Quality Control Standard for Drinking Water, Low Range, Bottle/500 mL , Iron Standard Solutions as Fe (NIST), 100 mg/L, Bottle/100 mL , Iron Standard Solution as Fe (NIST), 25 mg/L, pk/16 - 10 mL Voluette� Ampules , Iron Standard Solutions as Fe (NIST), 1 mg/L, Bottle 500 mL , Ammonium Hydroxide, 10% 100 mL MDB , Iron Reagent Solution, FerroZine�, Solution Pillows, PK/50 , Iron Reagent, FerroZine�, (Rapid Liquid) Solution, 500 mL , Ammonium Hydroxide 500 mL
1-10 Phenanthroline Method 8146	0.02 to 3.00 mg/L		View		Water, Deionized 4 L , Ferrous Ammonium Sulfate, Hexahydrate 113 g , Iron Ferrous Reagent, 1,10 Phenanthroline, AccuVac� Ampules, pk/25 , Iron Ferrous Reagent, 25ml Sample, pk/100 Powder Pillows
FerroVer Method 8008	0.02 to 3.00 mg/L		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Hydrochloric Acid 500 mL , Metals Quality Control Standard for Drinking Water, High Range, Bottle/500 mL , Metals Quality Control Standard for Drinking Water, Low Range, Bottle/500 mL , Iron Standard Solutions as Fe (NIST), 100 mg/L, Bottle/100 mL , Iron Standard Solution as Fe (NIST), 25 mg/L, pk/16 - 10 mL Voluette� Ampules , Iron (Total) Reagent, FerroVer�, 10mL Samples, PK/100 , Iron (Total) Reagent, FerroVer�, AccuVac�, pk/25 , RoVer� Rust Remover 454 g
TPTZ Method 8112	0.012 to 1.800 mg/L		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Metals Quality Control Standard for Drinking Water, High Range, Bottle/500 mL , Metals Quality Control Standard for Drinking Water, Low Range, Bottle/500 mL , Iron Standard Solutions as Fe (NIST), 100 mg/L, Bottle/100 mL , Iron (Total) Reagent, (TPTZ) AccuVac� Ampules , pk/25 , Iron Reagent (TPTZ), 10mL Samples, pk/100 , Iron Standard Solution as Fe (NIST), 10 mg/L, 500 mL , Iron Standard Solutions as Fe (NIST), 1 mg/L, Bottle 500 mL
FerroZine Rapid Liquid Method 8147	0.009 to 1.400 mg/L Fe		View		Nitric Acid (500 mL) , Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Metals Quality Control Standard for Drinking Water, Low Range, Bottle/500 mL , Iron Standard Solutions as Fe (NIST), 100 mg/L, Bottle/100 mL , Iron Standard Solution as Fe (NIST), 25 mg/L, pk/16 - 10 mL Voluette� Ampules , Iron Standard Solutions as Fe (NIST), 1 mg/L, Bottle 500 mL , Ammonium Hydroxide, 10% 100 mL MDB , Iron Reagent, FerroZine�, (Rapid Liquid) Solution, 500 mL , Ammonium Hydroxide 500 mL
FerroMo Method 8365	0.01 to 1.80 mg/L		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Iron Standard Solutions as Fe (NIST), 100 mg/L, Bottle/100 mL , Iron Standard Solutions as Fe (NIST), 1 mg/L, Bottle 500 mL , Iron (Total) Reagent Set, 0-1.80 mg/L, FerroMo Method, 100 tests , Iron Standard Solutions as Fe (NIST), 50 mg/L, pk/16 - 10 mL Voluette� Ampule , Total Iron Reagent 1, pk/25 Powder Pillows (FerroMo Method) , Total Iron Reagent 2, pk/50 Powder Pillows (FerroMo Method)
TitraVer Titration Method 8214	10 to 1000 mg/L as Fe		View		Water, Deionized 500 mL , Iron Standard Solutions as Fe (NIST), 100 mg/L, Bottle/100 mL , Iron Standard Solution as Fe (NIST), 25 mg/L, pk/16 - 10 mL Voluette� Ampules , Iron Standard Solution as Fe (NIST), 10 mg/L, 500 mL , Iron Standard Solutions as Fe (NIST), 50 mg/L, pk/16 - 10 mL Voluette� Ampule , Buffer Solution, for Iron Citrate Type, pk/100 Powder Pillows , EDTA Cartridges for Digital Titrator, 0.0716 M , EDTA Cartridges for Digital Titrator, 0.716 M , Iron (Total) Reagent Set 100 tests , Iron Standard Solutions as Fe (NIST), 1000 mg/L, 100 mL , REAGENT SET, IRON 100-1000 MG/L , Sodium Periodate, pk/100 Powder Pillows , Sulfosalicylic acid pp pk/100
Phenanthroline Method	0.2 to 6.0 mg/L Fe		View

Lead

Method	Range	EDL	Proc.	Approved	Reagent Ordering
PAR Method 10215, TNTplus 850	0.1 to 2.0 mg/L Pb		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Metals Prep Set TNTplus (50 digestions) , Lead Standard Solution, 100 mg/L as Pb (NIST), 100mL , Lead TNTplus (0.10-2.0 mg/L), 25 tests
Dithizone Method 8033	3 to 300 �g/L		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Nitric Acid Solution, 1:1 500 mL , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Buffer Solution, for Heavy Metals Citrate Type, pk/100 Powder Pillows , Chloroform 4 L (No Air Shipments) , Chloroform 500 mL , DithiVer� Metals Reagent Powder Pillows 100 , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Lead Standard Solution, 100 mg/L as Pb (NIST), 100mL , Lead Reagent Sets 90 tests (No Air Shipments)
LeadTrak Fast Column Extraction Method 8317	5 to 150 �g/L		View		Nitric Acid (500 mL) , Water, Deionized 4 L , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Lead Reagent Set, LeadTrak(TM) Fast Column Extraction Method, 20/tests , Lead Standard Solution, 1000 mg/L as Pb (NIST) , Lead Standard Solution, 10 mg/L as Pb (NIST), 25mL , Lead, PPb-1 Acid Preservative Solution 236 mL , PPB-2, FIXER RGT SOLN 43ML

Manganese

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Periodate Oxidation Method 8034	HR 0.1 to 20.0 mg/L		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Buffer Solution, for Manganese Citrate Type, cold periodate method, 10 mL sample, pk/100 Powder Pillows , Manganese Reagent Sets, HR, 100/tests , Manganese Standard Solutions as Mn (NIST) 25 mg/L, pk/20 - 2 mL PourRite Ampules , Manganese Standard Solutions as Mn (NIST), 10 mg/L, pk/20 - 2 mL PourRite Ampules , Manganese Standard Solutions as Mn (NIST), 1000 mg/L, Bottle/100 mL , Manganese Standard Solutions as Mn (NIST), pk/16 - 10 mL Voluette� Ampule , Sodium Periodate Powder Pillows 100
	LR 0.006 to 0.700 mg/L		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Ascorbic Acid, pk/100, Powder Pillows , Rochelle Salt Solution 29 mL DB , Manganese Standard Solutions as Mn (NIST) 25 mg/L, pk/20 - 2 mL PourRite Ampules , Manganese Standard Solutions as Mn (NIST), 10 mg/L, pk/20 - 2 mL PourRite Ampules , Manganese Standard Solutions as Mn (NIST), pk/16 - 10 mL Voluette� Ampule , Alkaline Cyanide Reagent, 50 mL, Self-Contained Dropping Bottle , Manganese, Low Range, Reagent Set, 0-0.7 mg/L, 10 mL sample, 50/tests, PAN Method , PAN Indicator Solutions 50 mL SCDB

Mercury

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Cold Vapor Mercury Concentration Method 10065	0.1 to 2.5 �g/L Hg		View		Nitric Acid (500 mL) , Water, Deionized 4 L , Sulfuric Acid, Conc. ACS Grade, 2.5 L , POTASSIUM PERMANGANATE, 454G , Hydroxylamine Hydrochloride 113 g , APPARATUS SET, COLD VAPR MERCURY , HGEX REAGENT B SOLN 500ML , HGEX RGT A 20 ML AMPULES PK/25 , HGEX RGT C SOLN 55ML , HGEX3 ALKALINE RGT PP PK/25 , HGEX4 INDICATOR PP PK/25 , HGEX5 HYDROXIDE SOLN 10ML SCDB , HGEX6 COMPLEXING RGT PP PK/25 , Mercury Reagent Sets 25 tests , Mercury Standard Solutions as Hg (NIST), 1000 mg/L, Bottle/100 mL , Potassium Persulfate 454 g

Molybdenum

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Mercaptoacetic Acid Method 8036	HR 0.2 to 40.0 mg/L Mo		View		Water, Deionized 4 L , CDTA SOLUTION, 0.4M 15ML SCDB , HR Molybdenum Reagent Set, 10 mL Samples, 100 Tests , Molybdenum Standard Solutions as Mo (NIST) 10 mg/L 100 mL , Molybdenum Standard Solutions as Mo (NIST), 1000 mg/L, 100 mL , MolyVer� 6 AccuVac� Ampules, 25/pk , MolyVer� 1 Reagent, 10 mL sample, pk/100 Powder Pillows , MolyVer� 2 Reagent, 10 mL Sample, pk/100 Powder Pillows , MolyVer� 3 Reagent, 10 mL sample, pk/100 Powder Pillows , Sulfamic Acid Powder Pillows, PK/100
Ternary Complex Method 8169	LR 0.02 to 3.00 mg/L Mo		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Molybdenum Standard Solutions as Mo (NIST) 10 mg/L 100 mL , Molybdenum Standard Solutions as Mo (NIST), 1000 mg/L, 100 mL , LR Molybdenum Reagent Set, 20mL Samples, 100/tests , Molybdenum 1 Reagent Powder Pillows for 20mL Samples PK/100 , Molybdenum 2 Reagent Solution 50 mL MDB

Monochloramine

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Indophenol Method 10200	0.01-0.50 mg/L NH₃-N; 0.04 -4.50 mg/L Cl₂		View		Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Dilution Water, Organic Free 500 mL , Alkalinity Buffer, pH 8.30, 50 mL sample, pk/25 Powder Pillows , Free Ammonia Reagent Set (Monochloramine/Free Ammonia, Indophenol Method), 50 tests , Free Ammonia Reagent Set, (Monochloramine/Free Ammonia, Indophenol Method) 250 tests , Free Ammonia Reagent Solution, 4ml SCDB , Hardness Treatment Reagent , Monochlor F Reagent, pk/100 powder pillows , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , SpecCheck Secondary Gel Standards Set, Monochloramine & Free Ammonia
Indophenol Method 10172	Indophenol Method 10172		View		Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Dilution Water, Organic Free 500 mL , Alkalinity Buffer, pH 8.30, 50 mL sample, pk/25 Powder Pillows , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Monochlor F Reagent, pk/50 Powder Pillows , Monochloramine Reagent Set, High Range (Indophenol Method), 0-10.0 mg/L, 50/tests
Indophenol Method 10171	LR 0.04 to 4.50 mg/L Cl2		View		Rochelle Salt Solution 29 mL DB , Chlorine Standard Solution, 25-30 mg/L as Cl2, pk/20 - 2 mL PourRite Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20, 2 mL PourRite� Ampules (NIST) , Dilution Water, Organic Free 500 mL , Alkalinity Buffer, pH 8.30, 50 mL sample, pk/25 Powder Pillows , Monochlor F Reagent, pk/100 powder pillows , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , SpecCheck Secondary Gel Standards Set, Monochloramine & Free Ammonia , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Monochlor F Reagent, pk/50 Powder Pillows

Nickel

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Dimethylglyoxime Method 10220, TNTplus 856	0.1 to 6.0 mg/L Ni		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Metals Prep Set TNTplus (50 digestions) , Nickel Standard Solutions as Ni (NIST) 1000 mg/L 100 mL , Nickel TNTplus (0.1-6.0 mg/L), 25 tests
Heptoxime Method 8037	0.02 to 1.8 mg/L Ni		View		Water, Deionized 4 L , Nitric Acid Solution, 1:1 500 mL , Chloroform 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Nickel Standard Solutions as Ni (NIST) 1000 mg/L 100 mL , Nickel 1 Reagent Powder Pillows 25 , Nickel 2 Reagent Powder Pillows 25 , Nickel Reagent Set, 0 - 1.80 mg/L as Ni, 50/test
1-(2 Pyridylazo)-2-Napthol (PAN) Method 8150	0.006 to 1.000 mg/L Ni		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Nitric Acid Solution, 1:1 500 mL , Cobalt / Nickel Reagent Set, PAN Method, 10-mL sample, 100 tests , EDTA REAGENT PWD PLWS PK/100 , PAN Indicator Solutions 100 mL , Phthalate-phosphate pp, pk/100 , Nickel Standard Solutions as Ni (NIST) 1000 mg/L 100 mL

Nitrate

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Chromotropic Acid Method 10020	HR 0.2 to 30.0 mg/L NO^3--N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Nitrogen-Nitrate Reagent Sets, 0-30 mg/L, 50/tests , Nitrogen-Nitrate Standard Solution as NO3-N (NIST), 10 mg/L, Bottle/500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST) 500 mg/L, pk/16 - 10 mL Voluette Ampules , Wastewater Influent Inorganics Quality Control Standard, 500 mL
Dimethylphenol Method 10206, TNTplus 836	HR 5 to 35 mg/L NO₃^--N or 22 to 155 mg/L NO₃		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Nitrogen-Nitrate Standard Solution as NO3-N (NIST), 10 mg/L, Bottle/500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 1000 mg/L, Bottle/500 mL , Sulfamic Acid, 454 g , Nitrate TNTplus, HR (5-35 mg/L NO3-N), 25 tests
Dimethylphenol Method 10206, TNTplus 835	LR 0.23 to 13.50 mg/L NO₃^--N or 1.00 to 60.00 mg/L NO₃		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Nitrogen-Nitrate Standard Solution as NO3-N (NIST), 10 mg/L, Bottle/500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Nitrate TNTplus, LR (0.23-13.5 mg/L NO3-N), 25 tests , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 1000 mg/L, Bottle/500 mL , Sulfamic Acid, 454 g
Cadmium Reduction Method 8039	HR 0.3 to 30.0 mg/L NO^3--N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Bromine Water, 29 mL , Nitrogen-Nitrate Standard Solution as NO3-N (NIST), 10 mg/L, Bottle/500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 1000 mg/L, Bottle/500 mL , Nitrate HR Reagent, NitraVer� 5, 10 mL sample, pk/100 , Phenol Solution, 30 g/L, 29 mL , Nitrate, AccuVac� Ampules, NitraVer� 5, pk/25
Cadmium Reduction Method 8192	LR 0.01 to 0.50 mg/L NO^3--N		View		Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Bromine Water, 29 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Nitrogen-Nitrate Standard Solution as NO3-N (NIST), 10 mg/L, Bottle/500 mL , Phenol Solution, 30 g/L, 29 mL , NitraVer� 6 Nitrate Reagent Powder Pillows, 10 mL sample, pk/100 , Nitrogen, Nitrite, LR, NitriVer� 3 Reagent, 100/test , Nitrogen-Nitrate Reagent Sets (LR), 10mL sample, 100 tests
Cadmium Reduction Method 8171	MR 0.1 to 10.0 mg/L NO₃^--N		View		Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Bromine Water, 29 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST) 500 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrate HR Reagent, NitraVer� 5, 10 mL sample, pk/100 , Phenol Solution, 30 g/L, 29 mL , Nitrate, AccuVac� Ampules, NitraVer� 5, pk/25 , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 100 mg/L, Bottle/500 mL
UV Screening Method 10049	0.1 to 10.0 mg/L NO₃-N		View		Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Hydrochloric Acid Standard Solutions 1.0 N, 1.0 M 1 L , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 100 mg/L, Bottle/500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST) 5 mg/L, pk/16 - 10 mL Voluette� Ampules
Direct Measurement ISE Method 8358	0.1 to 100.0 mg/L NO₃-N		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Sulfuric Acid, ACS Grade, 500 mL , Fluoride Standard Solution as F (NIST), 1.0 mg/L, Bottle/500 mL , Fluoride Standard Solution as F (NIST), 10 mg/L, Bottle/500 mL , Fluoride Ionic Strength Adjustor Powder Pillows, 100/pk , Ammonium Sulfate Reference Cartridges , Nitrate Ionic Strength Adjustor Powder Pillows, 100/pk
Direct Measurement ISE Method 8359	0.04 to 4.00 mg/L NO₃-N		View		Water, Deionized 4 L , Nitrogen-Nitrate Standard Solution as NO3-N (NIST), 10 mg/L, Bottle/500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 100 mg/L, Bottle/500 mL , Ammonium Sulfate Reference Cartridges , Nitrate Ionic Strength Adjustor Powder Pillows, 100/pk , Nitrate and Nitrite Test Strips, 25 tests , Nitrate Ionic Strength Adjustor Buffer Solution 500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 1 mg/L, Bottle/500 mL

Nitrite

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Diazotization Method 10207, TNTplus 839	LR 0.015 to 0.600 mg/L NO2--N or 0.05 to 2.00 mg/L NO₂		View		Water, Deionized 4 L , Sodium Nitrite 454 g , Nitrite TNTplus, Low Range (0.015-0.60 mg/L NO2-N), 25 tests
Ferrous Sulfate Method 8153	HR 2 to 250 mg/L NO₂^-		View		Water, Deionized 4 L , Sodium Nitrite 454 g , Nitrogen, Nitrite HR, NitriVer� 2 Reagent , 10 mL samples, pk/100 Powder Pillows
Diazotization Method 10019	LR 0.003 to 0.500 mg/L NO₂^--N		View		Water, Deionized 4 L , Nitrogen-Nitrite, Low Range, Reagent Set 50/tests , Sodium Nitrite 454 g
Diazotization Method 8507	LR 0.002 to 0.300 mg/L NO2--N		View		Water, Deionized 4 L , Blank AccuVac� Ampules, pk/25 , Nitrogen, Nitrite, LR, NitriVer� 3 Reagent, 100/test , Sodium Nitrite 454 g , Nitrogen, Nitrite, AccuVac� Ampules, NitriVer� 3, pk/25
Ceric Acid Titration Method 8351	100 to 2500 mg/L as NaNO₂		View		Water, Deionized 500 mL , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Sodium Nitrite 454 g , Ceric Standard Cartridge for Digital Titrator, 0.500 N , Ferroin Indicator Solution 29 mL DB , Sodium Thiosulfate Cartridges for Digital Titrator 0.2000 N , Sulfuric Acid Standard Solutions, 19.2 N, Bottle/100 mL MDB
Diazotization Method 10237, TNTplus 840	HR (0.6 to 6.0 mg/L NO2-N or 2.0 to 20.0 mg/L NO2-)		View		Water, Deionized 4 L , Sodium Nitrite 454 g , Nitrite TNTplus, High Range (0.6 - 6.0 mg/L NO2-N), 25 tests

Nitrogen, Total

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Persulfate Digestion Method 10072	HR 2 to 150 mg/L N		View		Water, Deionized 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Dilution Water, Organic Free 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Ammonia Standard Solution, NH3-N 150 mg/L, 16 - 10 mL Voluette� Ampule for TKN , Nitrogen Primary Standard, set of 3, 25 g , Nitrogen-Ammonia Standard Solutions as NH3-N, 160 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/20 - 2 mL PourRite (TM) Ampule , Nitrogen, Total, High Range Reagent Set, 50/tests
Persulfate Digestion Method 10208, TNTplus 827	HR 5 to 40 mg/L N		View		Water, Deionized 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Dilution Water, Organic Free 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 1 mg/L, 500 mL , Ammonia Standard Solution, NH3-N 150 mg/L, 16 - 10 mL Voluette� Ampule for TKN , Nitrogen-Ammonia Standard Solutions as NH3-N, 160 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/20 - 2 mL PourRite (TM) Ampule , Nitrogen (Total) TNTplus, High Range (5-40 mg/L), 25 tests
Persulfate Digestion Method 10208, TNTplus 828	UHR 20 to 100 mg/L N		View		Water, Deionized 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Dilution Water, Organic Free 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Ammonia Standard Solution, NH3-N 150 mg/L, 16 - 10 mL Voluette� Ampule for TKN , Nitrogen-Ammonia Standard Solutions as NH3-N, 160 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/20 - 2 mL PourRite (TM) Ampule , Nitrogen (Total) TNTplus, Ultra High Range (20-100 mg/L), 25 tests
Persulfate Digestion Method 10208, TNTplus 826	LR 1 to 16 mg/L N		View		Water, Deionized 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Dilution Water, Organic Free 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 1 mg/L, 500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Ammonia Standard Solution, NH3-N 150 mg/L, 16 - 10 mL Voluette� Ampule for TKN , Nitrogen-Ammonia Standard Solutions as NH3-N, 160 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/20 - 2 mL PourRite (TM) Ampule , Nitrogen (Total) TNTplus, Low Range (1-16 mg/L), 25 tests
Persulfate Digestion Method 10071	LR 0.5 to 25.0 mg/L N		View		Water, Deionized 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Dilution Water, Organic Free 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 1 mg/L, 500 mL , Ammonia Standard Solution, NH3-N 150 mg/L, 16 - 10 mL Voluette� Ampule for TKN , Nitrogen Primary Standard, set of 3, 25 g , Nitrogen-Ammonia Standard Solutions as NH3-N, 160 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/20 - 2 mL PourRite (TM) Ampule , Nitrogen, Total Reagent Set, Test 'N Tube, 50/tests

Nitrogen, Total Inorganic (TIN)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Titanium Trichloride Reduction Method 10021	0.2 to 25.0 mg/L N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid 500 mL , Nitrogen-Nitrate Standard Solution as NO3-N (NIST), 10 mg/L, Bottle/500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 1000 mg/L, Bottle/500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 100 mg/L, Bottle/500 mL , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 1 mg/L, Bottle/500 mL , Nitrogen-Ammonia Reagent Set, Low-Range Ammonia, 50 ready to use tubes , Sodium Thiosulfate Standard Solutions 0.1 N 100 mL MDB , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST) 5 mg/L, pk/16 - 10 mL Voluette� Ampules , Nitrogen-Inorganic, Total Pretreatment Reagent Set, 50/tests , Nitrogen-Nitrate Standard Solution, 500 mg/L as NO3-N (NIST), pk/20 - 2 mL PourRite� Ampules , Nitrogen-Nitrate Standard Solutions as NO3-N (NIST), 15 mg/L, 100/tests, Measuring Dropper Bottle , Water, Deionized 100 mL

Nitrogen, Total Kjeldahl (TKN)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Nessler Method 8075	1 to 150 mg/L		View		Potassium Hydroxide Standard Solutions 1.0 N 50 mL SCDB , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Potassium Hydroxide Standard Solutions 8.00 N 100 mL MDB , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 1 mg/L, 500 mL , Ammonia Standard Solution, NH3-N 150 mg/L, 16 - 10 mL Voluette� Ampule for TKN , Mineral Stabilizer Solution 50 mL SCDB , Nessler Reagent 500 mL , Polyvinyl Alcohol Dispersing Agent 50 mL SCDB , Hydrogen Peroxide Solution, 50% 490 mL (No Air/UPS Shipments) , Nitrogen (Total Kjeldahl) Reagent Set , Nitrogen Primary Standard, set of 3, 25 g , Nitrogen-Ammonia Standard Solutions as NH3-N, 160 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/20 - 2 mL PourRite (TM) Ampule , Sodium Thiosulfate, Pentahydrate 454 g , TKN Indicator Solution 50 mL SCDB

Nitrogen-Ammonia/Ammonium

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Nessler Method 8038	0.02 to 2.50 mg/L NH₃-N		View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Nitrogen-Ammonia Standard Solutions as NH3-N, 1 mg/L, 500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Mineral Stabilizer Solution 50 mL SCDB , Nessler Reagent 500 mL , Nitrogen-Ammonia Reagent Set, 0-3 mg/L, Nesslers Method, Colorimetric, 250/tests , Polyvinyl Alcohol Dispersing Agent 50 mL SCDB , Sodium Thiosulfate Standard Solutions 0.1 N 100 mL MDB
Salicylate Method	0.01 to 0.50 mg/L NH₃-N		View		Water, Deionized 4 L , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Sulfide Inhibitor Reagent 100 , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Ammonia Cyanurate Reagent, pk/100 Powder Pillows , Ammonia Salicylate Reagent, 10 mL sample, pk/100 Powder Pillows , Nitrogen-Ammonia Reagent Set, Salicylate Method, 10 mL sample, 100 tests
Salicylate Method 10031	HR 0.4 to 50.0 mg/L NH3-N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid 500 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Sulfide Inhibitor Reagent 100 , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Ammonia Standard Solution, NH3-N 150 mg/L, 16 - 10 mL Voluette� Ampule for TKN , Nitrogen-Ammonia Reagent Set, HR, Test 'N Tube, Salicylate Method, 0.4-50 mg/L, 50/tests
Salicylate Method 10023	LR 0.02 to 2.50 mg/L NH3-N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid 500 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules , Hydrochloric Acid Standard Solutions 1.0 N, 1.0 M 1 L , Nitrogen-Ammonia Reagent Set, Low-Range Ammonia, 50 ready to use tubes , Nitrogen-Ammonia Standard Solutions as NH3-N, 1 mg/L, 500 mL , Sulfide Inhibitor Reagent 100 , Wastewater Effluent Inorganics Quality Control Standard, 500 mL
Salicylate Method 10205, TNTplus 830	ULR 0.015 to 2.000 mg/L NH3-N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid 500 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Hydrochloric Acid Standard Solutions 1.0 N, 1.0 M 1 L , Nitrogen-Ammonia Standard Solutions as NH3-N, 1 mg/L, 500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Ammonia TNTplus, Ultra Low Range (0.015-2 mg/L NH3-N), 25 tests
Salicylate Method 10205, TNTplus 831	LR 1 to 12 mg/L NH3-N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid 500 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Hydrochloric Acid Standard Solutions 1.0 N, 1.0 M 1 L , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Ammonia TNTplus, Low Range (1-12 mg/L NH3-N), 25 tests
Salicylate Method 10205, TNTplus 832	HR 2 to 47 mg/L NH3-N		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid 500 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Hydrochloric Acid Standard Solutions 1.0 N, 1.0 M 1 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Ammonia TNTplus, High Range (2-47 mg/L NH3-N), 25 tests
Indophenol Method 10201	0.01 to 0.50 mg/L NH₃-N		View		Dilution Water, Organic Free 500 mL , Free Ammonia Reagent Set (Monochloramine/Free Ammonia, Indophenol Method), 50 tests , Free Ammonia Reagent Solution, 4ml SCDB , Hardness Treatment Reagent , Monochlor F Reagent, pk/100 powder pillows , Nitrogen-Ammonia Standard Solutions as NH3-N, 10 mg/L, 500 mL , Nitrogen-Ammonia Standard Solutions as NH3-N, 50 mg/L, pk/16 - 10 mL Voluette Ampules
Direct Measurement ISE Method 10001	0.1 to 10.0 mg/L NH3-N		View		Water, Deionized 4 L , Nitrogen-Ammonia Standard Solutions as NH3-N, 100 mg/L, 500 mL , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Ammonia Electrode Filling Solution, 50 mL , Ammonia Electrode Storage Solution, 500 mL , Ammonia Ionic Strength Adjustor, Bottle/500 mL , Replacement Membranes, pk/5
Known Addition ISE Method 10002	=0.8 mg/L NH₃-N		View		Water, Deionized 4 L , Ammonia Standard Solution, N 1000 mg/L, Bottle/1 L , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 10 N 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Ammonia Electrode Filling Solution, 50 mL , Ammonia Electrode Storage Solution, 500 mL , Replacement Membranes, pk/5

Oil and Grease

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Hexane Extractable Gravimetric Method 10056	15 to 3000 mg/L HEM and SGT-HEM		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Hexane 500 mL , Acetone, 500 mL , Desiccant, Silica Gel with Indicator, 454 g , HEXADECANE, 99% 100ML , Silica Gel, 100-200 mesh 500 g , Stearic Acid 500 g
Solid Phase Extraction Method 10300	5 to 1000 mg/L HEM and SGT-HEM		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Desiccant, Silica Gel with Indicator, 454 g , HEXADECANE, 99% 100ML , Silica Gel, 100-200 mesh 500 g , Stearic Acid 500 g , Methyl Alcohol 500 mL

Organics, UV254

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Direct Reading Method 10054			View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Dilution Water, Organic Free 500 mL , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Chromic Acid Cleaning Solution 500 mL , Potassium Acid Phthalate 500 g

Oxidation-Reduction Potential (ORP)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Direct Measurement Method 10228	-2000 mV to 2000 mV		View		Sodium Hydroxide Standard Solutions 0.100 N 1 L , 200 mV ORP Solution, 500ML , 600 mV ORP Solution, 500ML , Hydrochloric Acid Standard Solutions 0.1 N 1 L , Lights Solution Ampules 20

Oxygen Scavengers

Method	Range	EDL	Proc.	Approved	Reagent Ordering
p-Dimethylaminobenzaldehyde Method 8141	4 to 600 �g/L N₂H₄		View		Water, Deionized 4 L , Hydrazine Reagent, AccuVac� Ampules, pk/25 , Hydrazine Reagent, HydraVer� 2, 100 mL , Hydrazine Sulfate 100 g
Iron Reduction Method 8140	5 to 600 �g/L carbohydrazide; 3 to 450 �g/L DEHA; 9 to 1000 �g/L hydroquinone; 13 to 1500 �g/L iso-ascorbic acid [ISA]; 15 to 1000 �g/L methylethyl ketoxime [MEKO]		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , DEHA Reagent 1, pk/100 Powder Pillows , DEHA Reagent 2 Solution, 100 mL , Oxygen Scavenger Reagent Set, 25 mL samples, 100/test

Ozone

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Indigo Method	LR (0.01 to 0.25 mg/L O3), MR (0.01 to 0.75 mg/L O3), HR (0.01 to 1.50 mg/L O3)		View		Water, Deionized 4 L , Ozone Reagent, HR, AccuVac� Ampules, pk/25 , Ozone Reagent, LR, AccuVac� Ampules, 0-0.25 mg/L, pk/25 , Ozone Reagent, MR, AccuVac� Ampules, pk/25 , SpecCheck Gel Secondary Standard Set, Ozone, Mid-Range, 0-0.75 mg/L

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Electrode Method 8156			View		Potassium Chloride Reference Electrolyte Gel Cartridges 2/pk , Internal Filling Solution , Buffer Solution, pH 10.01, 500 mL (color coded blue) (NIST) , Buffer Solution, pH 4.01, 500 mL (color coded red) (NIST) , Buffer Solution, pH 7.00, 500 mL (color coded yellow) (NIST) , Buffer, pH 10.00, pk/50 Powder Pillows (color coded blue) (NIST) , Buffer, pH 4.01, pk/50 Powder Pillows (color coded red) (NIST) , Buffer, pH 7.00, pk/50 Powder Pillows (color coded yellow) (NIST) , pH Buffer, Technical, pH4.65 at 25 �C, 500 mL (Radiometer Analytical) , pH Buffer, Technical, pH9.23 at 25 �C, 500 mL (Radiometer Analytical) , pH Buffer,Technical, pH1.09 at 25 �C, 500 mL (Radiometer Analytical) , pH Color Buffer Solution Kit, 500mL Each (pH 4.01, pH 7.00, pH 10.01) , pH Electrode Storage Solution 500 mL , pH Standard, IUPAC, pH1.679 at 25 �C, Certified, 500 mL (Radiometer Analytical) , pH Standard, IUPAC, pH10.012 at 25 �C, Certified, 500 mL (Radiometer Analytical) , pH Standard, IUPAC, pH4.005 at 25 �C, Certified, 500 mL (Radiometer Analytical) , pH Standard, IUPAC, pH7.000 at 25 �C, Certified, 500 mL (Radiometer Analytical)

Phenols

Method	Range	EDL	Proc.	Approved	Reagent Ordering
4-Aminoantipyrine Method 8047	0.002 to 0.200 mg/L		View		Water, Deionized 4 L , Chloroform 4 L (No Air Shipments) , Sulfide Inhibitor Reagent 100 , Copper Sulfate Powder Pillows, pk/50 , Hardness1 Buffer Solution, 500 mL, (pH10.1) , Methyl Orange Indicator Solutions 100 mL MDB , Phenol 113 g , Phenol 2 Reagent, pk/100 Powder Pillows , Phenol Reagent, pk/100 Powder Pillows , Phenols Reagent Set 100 tests (No Air Shipments) , Phosphoric Acid, 10% 100 mL MDB

Phosphonates

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Persulfate UV Oxidation Method 8007	Multiple Ranges from 0.02 to 125.0 mg/L		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 1 mg/L, Bottle/500 mL , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate, PhosVer� 3 Reagent, 10 mL sample, pk/100 Powder Pillows , Phosphonates Reagent Set, 100/tests , PhosVer� 3 Phosphate Reagent, 10 mL sample, pk/1000 Powder Pillows , Potassium Persulfate Powder Pillows 100

Phosphorus

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Acid Digestion Method 8180			View		Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L
PhosVer(TM) 3 with Acid Hydrolysis Method 8180	0.06 to 3.50 mg/L PO43-		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Bromine Water, 29 mL , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Phenol Solution, 30 g/L, 29 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Water, Deionized 100 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 1 mg/L, Bottle/500 mL , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate (Acid Hydrolyzable) Reagent Set, 50/tests , Phosphate Reagent, PhosVer� 3, 10 mL sample, pk/50 Powder Pillows , POTASSIUM PERSULFATE PP PK/50 , SODIUM HYDROXIDE, 1.0N 100ML , SODIUM HYDROXIDE, 1.54N 100ML
Molybdovanadate Method 8114	0.3 to 45.0 mg/L PO43-		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Bromine Water, 29 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Phenol Solution, 30 g/L, 29 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Molybdovanadate Reagent, bottle/100 mL MDB , Phosphorus, Molybdovanadate, AccuVac� Ampules, pk/25
Molybdovanadate Rapid Liquid Method 8114	HR 0.3 to 45.0 mg/L PO4³^-		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Bromine Water, 29 mL , Ammonium Hydroxide 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Phenol Solution, 30 g/L, 29 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphorus, Rapid Liquid(TM) Reagents 500 mL
Molybdovanadate Method 8114	HR 1.0 to 100.0 mg/L PO4³^-		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Bromine Water, 29 mL , Ammonium Hydroxide 500 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Phenol Solution, 30 g/L, 29 mL , Water, Deionized 100 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, bottle/500 mL , Phosphorus, Test 'N Tube, HR, Reactive, Reagent Set, 50/test
Amino Acid Method 8178	0.23 to 30.00 mg/L PO43-		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid Standard Solutions, 10 N, Bottle/1 L , Bromine Water, 29 mL , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Sulfamic Acid, 454 g , Phenol Solution, 30 g/L, 29 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Amino Acid Reagent 100 tests , Amino Acid Reagent Powder Pillows for LR Silica, 25 mL sample, pk/100 , Molybdate Reagent 100 mL MDB , Phosphorus, Reactive, (Orthophosphate) Reagent Set, 100/tests
Ascorbic Acid Rapid Liquid Method 10055	LR 19 to 3000 �g/L PO43-		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Ammonium Hydroxide 500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST), 1 mg/L, Bottle/500 mL , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphorus Rapid Liquid Reagent Set, Ascorbic Acid, 250/test , Phosphorus, Reactive, Rapid Liquid(TM) Reagents 450 mL , Phosphorus, Reactive, Rapid Liquid(TM) Reagents 48 g , Phosphorus, Reactive, Rapid Liquid(TM) Reagents 500 mL
Molybdovanadate Method 10214, TNTplus 846	5.0 to 90.0 mg/L PO4³^- or (1.6 to 30 mg/L PO₄-P)		View		Sample Blank Vials for TNTplus, 5/pk , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, bottle/500 mL , Phosphorus TNTplus, UHR (2-20 mg/L PO4-P), 25 tests
PhosVer 3 (Ascorbic Acid) Method 8048	0.02 to 2.50 mg/L PO43-		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Blank AccuVac� Ampules, pk/25 , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST), 1 mg/L, Bottle/500 mL , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate, PhosVer� 3 Reagent, 10 mL sample, pk/100 Powder Pillows , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, bottle/500 mL , Phosphate Pretreatment, pk/100 Powder Pillows , Phosphate Reagent, PhosVer� 3, pk/25 AccuVac� Ampules
PhosVer 3 Method 8048	0.06 to 5.00 mg/L PO43- or 0.02 to 1.60 mg/L P		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Bromine Water, 29 mL , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Phenol Solution, 30 g/L, 29 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST), 1 mg/L, Bottle/500 mL , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate Reagent, PhosVer� 3, 10 mL sample, pk/50 Powder Pillows , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, bottle/500 mL , Phosphate, 50 mg/L, pk/20 - 2 mL Ampules , Phosphorus, Reactive (Orthophosphate), UR, 50/tests
Ascorbic Acid Method 10209, 10210, TNTplus 844	HR (1.5 to 15.0 mg/L PO43- or 0.5 to 5.0 mg/L PO₄-P)		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphorus TNTplus, HR (0.5-5.0 mg/L PO4-P), 25 tests
Ascorbic Acid Method 10209, 10210, TNTplus 843	LR (0.15-4.50 mg/L PO43- or 0.05-1.50 mg/L PO₄-P)		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphorus TNTplus, LR (0.05-1.50 mg/L PO4-P), 25 tests
Ascorbic Acid Method 10209, 10210, TNTplus 845	UHR (6 to 60 mg/L PO43- or 2 to 20 mg/L PO4-P)		View		Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, bottle/500 mL , Phosphorus TNTplus, UHR (2-20 mg/L PO4-P), 25 tests
Acid Persulfate Digestion Method 8190			View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Water, Deionized 100 mL , Phosphate Standard Solutions as PO4 (NIST) 10 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 3 mg/L 946 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 1 mg/L, Bottle/500 mL , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 15 mg/L, Bottle/100 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , Phosphate Reagent, PhosVer� 3, 10 mL sample, pk/50 Powder Pillows , POTASSIUM PERSULFATE PP PK/50 , SODIUM HYDROXIDE, 1.54N 100ML , Phosphorus, Total, Test 'N Tube Reagent Set, 50/tests
Molybdovanadate Method 10127	HR 1.0 to 100.0 mg/L PO43-		View		Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Sulfuric Acid, ACS Grade, 500 mL , Sodium Hydroxide Standard Solutions 5.0 N 1 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Water, Deionized 100 mL , Phosphate Standard Solutions as PO4 (NIST) 500 mg/L 100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 100 mg/L, Bottle/100 mL MDB , Phosphate Standard Solutions as PO4 (NIST), 30 mg/L Bottle/946 mL , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, pk16 - 10-mL Voluette� Ampule , Phosphate Standard Solutions as PO4 (NIST), 500 mg/L, pk/16 10-mL Voluette� Ampule , POTASSIUM PERSULFATE PP PK/50 , SODIUM HYDROXIDE, 1.54N 100ML , Phosphate Standard Solutions as PO4 (NIST), 50 mg/L, bottle/500 mL , MOLYBDOVANADATE RGT, 25ML , Phosphorus, Total High Range Test 'N Tube Reagent Set, 50/test

Polychlorinated Bi-Phenols (PCB)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Immunoassay Method 10050			View		Caps, flip-spout, 2/pkg , Water, Deionized 500 mL , Reagent Set, PCB in Soil Pocket Colorimeter II Analysis System

Potassium

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Tetraphenylborate Method 8049	0.1 to 7.0 mg/L		View		Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Nitric Acid Solution, 1:1 500 mL , Potassium 1 Reagent, pk/25 Powder Pillows , Potassium 2 Reagent, pk/25 Solution Pillows , Potassium 250 mg/L 10 mL Ampules, Pk/16 , Potassium 3 Reagent, pk/100 Powder Pillows , Potassium Standard Solutions as K (NIST) 100 mg/L 500 mL , REAGENT SET, POTASSIUM 0.1-7.0 mg/L as K

Quaternary Ammonium Compounds (QAC)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Direct Binary Complex Method 8337	0.2 to 5.0 mg/L as CTAB		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Sodium Hydroxide Standard Solutions 1.000 N 900 mL , Quaternary Ammonium Compound Reagent 1, Powder Pillows, pk/50 , Quaternary Ammonium Compound Reagent 2, Powder Pillows, pk/25 , Quaternary Ammonium Compound (QAC) Standard, Bottle/100 mL , Quaternary Ammonium Compound Rgt. Set, 0-5 mg/L as CTAB

Salinity

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Mercuric Nitrate Method 10073	0-100 ppt Salinity		View		Water, Deionized 4 L , Chloride Standard Solutions as Cl-(NIST) 12,500 mg/L, 16/Voluette� Ampules , 18,000 �S/cm Conductivity Standard; 10,246 mg/L NaCl; 100 mL , Diphenylcarbazone, 10 mL sample, pk/100 Powder Pillows , Mercuric Nitrate Cartridges for Digital Titrator

Selenium

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Diaminobenzidine Method 8194	0.01 to 1.00 mg/L		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Potassium Hydroxide Standard Solutions 12.0 N 100 tests MDB , Sodium Hydroxide Standard Solutions 0.100 N 1 L , Sulfuric Acid Standard Solutions, 19.2 N, Bottle/500 mL , Phenol Solution, 30 g/L, 29 mL , Acetone, 500 mL , Hydrochloric Acid Standard Solutions 0.1 N 1 L , Buffer Solution, Sulfate Type 500 mL , Diaminobenzidine, Tetrahydrochloride 5 g , Hydrogen Peroxide Solution 473 mL (No Air Shipments) , Methyl Orange Indicator Solutions 500 mL , Potassium Permanganate Solution 100 mL , REAGENT SET, FOR SELENIUM , Selenium Standard Solutions as Se (NIST), 1000 mg/L, Bottle/100 mL , TitraVer� Hardness Reagent 100 g , Toluene 4 L (No Air Shipments)

Silica

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Silicomolybdate Method 8185	HR 1 to 100 mg/L		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Acid Reagent Powder Pillows for HR Silica, 10mL sample, pk/100 , Citric Acid for Silica, 10 mL Sample, pk/100 Powder Pillows , Molybdate Reagent Powder Pillows for HR Silica, 10 mL sample, pk/100 , Silica Reagent Set, High Range, 10 mL Samples, 100/tests , Silica Standard Solutions as SiO2 (NIST), 1000 mg/L, Bottle/500 mL , Silica Standard Solutions as SiO2 (NIST), 50 mg/L, Bottle/200 mL , SODIUM BICARBONATE 454G
Heteropoly Blue Method 8186	DR 5000/2800/2700: LR (0.010 to 1.600 mg/L as SiO2) DR/2500 and DR/2400: LR (0.01 to 1.60 mg/L as SiO2)		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 1.000 N, Bottle/1 L , Citric Acid for Silica, 10 mL Sample, pk/100 Powder Pillows , SODIUM BICARBONATE 454G , Amino Acid F Reagent Powder Pillows, 10 mL sample, pk/100 (for silica analysis) , Molybdate 3 Reagent Solution, 50 mL, SCDB , Silica Standard Solutions as SiO2 (NIST) 25 mg/L 236 mL , Silica Standard Solutions as SiO2 (NIST), 1 mg/L, Bottle/500 mL , Silica, Low Range, Reagent Set, 10mL Samples, 100 Tests
Heteropoly Blue Method 8282	ULR(3 to 1000 �g/L as SiO2		View		Water, Deionized 4 L , Ammonium Hydroxide 500 mL , Silica Standard Solutions as SiO2 (NIST), 1 mg/L, Bottle/500 mL , Amino Acid F Reagent Solution Package 3.78 L (No Air Shipments) , Amino Acid F Reagent Solution, 100mL , Amino Acid F Reagent Solution, 20 Ampules (for ultra low range silica analysis) , Citric Acid F Reagent Solution, for Rapid Liquid Silica, 500 mL , Molybdate 3 Reagent 1 L , Molybdate 3 Reagent for LR and ULR Silica, 100mL , Molybdate 3 Reagent for Silica Analysis (2.9 L) , Molybdate 3 Reagent, for Rapid Liquid Silica, 500 mL , Silica Standard Solutions as SiO2 (NIST) 0.5 mg/L 3.78 L , Silica, Ultra Low Range, Bulk Solution, Reagent Set, 100 tests , Silica, Ultra Low Range, Reagent Set, 40/test , Amino Acid F Dilution Solvent, for Rapid Liquid Silica, 475 mL , Amino Acid F Reagent Powder, for Rapid Liquid Silica, 55 g , Silica, Ultra Low Range Rapid Liquid (TM) Reagent Set, 250/test
Heteropoly Blue Rapid Liquid Method 8282	ULR 3 to 1000 �g/L as SiO2		View		Water, Deionized 4 L , Ammonium Hydroxide 500 mL , Silica Standard Solutions as SiO2 (NIST), 1 mg/L, Bottle/500 mL , Citric Acid F Reagent Solution, for Rapid Liquid Silica, 500 mL , Molybdate 3 Reagent 1 L , Molybdate 3 Reagent for LR and ULR Silica, 100mL , Molybdate 3 Reagent for Silica Analysis (2.9 L) , Molybdate 3 Reagent, for Rapid Liquid Silica, 500 mL , Silica Standard Solutions as SiO2 (NIST) 0.5 mg/L 3.78 L , Amino Acid F Dilution Solvent, for Rapid Liquid Silica, 475 mL , Amino Acid F Reagent Powder, for Rapid Liquid Silica, 55 g , Silica, Ultra Low Range Rapid Liquid (TM) Reagent Set, 250/test

Silver

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Colorimetric Method 8120	0.02 to 0.70 mg/L		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 100 tests MDB , Water, Deionized 4 L , Sulfuric Acid, Conc. ACS Grade, 2.5 L , Sodium Hydroxide Standard Solutions 1.000 N 100 mL MDB , Sodium Hydroxide Solution, 50%, 100 mL , Hydrogen Peroxide Solution, 50% 490 mL (No Air/UPS Shipments) , Phenolphthalein Indicator, 1 g/L, 15 mL , REAGENT SET, SILVER COLORIMETRIC METHOD , Silver 1 Reagent Powder Pillows pk/50 , Silver 2 Reagent Solution Pillows pk/50 , Silver Standard Solution as Ag (NIST), 1000 mg/L, Bottle/100 mL , Sodium Thiosulfate Powder Pillows 50/pk , Thymolphthalein Indicator Solution 15 mL SCDB

Sodium

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Direct Measurement ISE Method	10 to 2000 �g/L Na⁺		View		Water, Deionized 4 L , Potassium Chloride Reference Electrolyte Gel Cartridges 2/pk , Sodium Standard Solution as Na 100 mg/L 1 L (NIST) , Sodium Standard Solution as Na 1000 mg/L 500 mL (NIST) , Sodium/Potassium Ionic Strength Adjustor 100

Solids

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Direct Measurement Method 8165			View
Gravimetric Method 8158, 8164			View		Water, Deionized 4 L , Ammonium Hydroxide 500 mL
Gravimetric Method 8277			View		Water, Deionized 4 L , Ammonium Hydroxide, 10% 500 mL
Gravimetric Method 8276			View		Water, Deionized 4 L
Gravimetric Method 8271			View		Water, Deionized 4 L

Sulfate

Method	Range	EDL	Proc.	Approved	Reagent Ordering
SulfaVer 4 Method 8051	2 to 70 mg/L		View		Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Sulfate Reagent, SulfaVer� 4, 10-mL sample, pk/100 Powder Pillows , Sulfate Reagent, SulfaVer� 4, pk/25 AccuVac� Ampules , Sulfate Standard Solutions as SO4 (NIST), 2500 mg/L, pk/16 - 10 mL Voluette� Ampule , Sulfate Standard Solutions as SO4 (NIST), 1000 mg/L, Bottle/500 mL
Turbidimetric Method 10227, TNTplus 865	HR (150 to 900 mg/L SO₄²^-		View		Water, Deionized 4 L , Wastewater Influent Inorganics Quality Control Standard, 500 mL , Sulfate Standard Solutions as SO4 (NIST), 2500 mg/L, Bottle/500 mL
Turbidimetric Method 10227, TNTplus 864	LR 40 to 150 mg/L SO42-		View		Water, Deionized 4 L , Inorganics Quality Control Standard for Drinking Water, Bottle/500 mL , Wastewater Effluent Inorganics Quality Control Standard, 500 mL , Sulfate Standard Solutions as SO4 (NIST), 100 mg/L, Bottle/500 mL , Sulfate Standard Solutions as SO4 (NIST), 50 mg/L, Bottle/500 mL

Sulfite

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Iodate-Iodide Buret Titration Method 8071	0 to 500 mg/L as SO₃^2- ^{(or 0 to > 500 mg/L)}		View		Potassium Iodide-Iodate Standard Solutions 0.0125 N 1 L , Starch Indicator Solution, 100 mL MDB , Dissolved Oxygen 3 Reagent, 60mL sample, pk/100 Powder Pillows , Sodium Thiosulfate, Stabilized, Standard Solutions 0.0250 N 1 L , Sulfite Reagent Sets 100 tests
Iodate-Iodide Method 8216	4 to greater than 400 mg/L as SO₃^2-		View		Water, Deionized 4 L , Starch Indicator Solution, 100 mL MDB , Dissolved Oxygen 3 Reagent, 60mL sample, pk/100 Powder Pillows , Sulfuric Acid Standard Solutions, 19.2 N, Bottle/100 mL MDB , Sodium Thiosulfate, Stabilized, Standard Solutions 0.0250 N 1 L , Iodate-Iodide Standard Solutions 0.3998 N, Cartridge for Digital Titrator , Sulfite Reagent Set, 100/test , Sulfite Standard Solution as SO3, 15 mg/L, Bottle/500 mL , Sulfite Standard Solution as SO3, 5000 mg/L, pk/16 - 10 mL Voluette� Ampule
Colorimetric Method	0.10 to 5.00 mg/L		View

Surfactants, Anionic

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Crystal Violet Method 8028	0.002 to 0.275 mg/L as LAS		View		Acetone, 500 mL , Buffer Solution, Sulfate Type 500 mL , BENZENE, ACS 4L , Detergent Standard Solution as LAS 60 mg/L, pk/16 , Detergents Reagent Powder Pillows 25 , Detergents Reagent Sets (No Air Shipments)

Suspended Solids

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Photometric Method 8006	5 to 750 mg/L		View

Tannin and Lignin

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Tyrosine Method 8193	0.1 to 9.0 mg/L		View		Water, Deionized 4 L , Formaldehyde, Solution 100 mL , Sodium Carbonate Solution 500 mL , Sodium Pyrophosphate, Crystal 50 g , Tannic Acid 113 g , Tannin-Lignin Reagent Sets, up to 100 tests , TanniVer� 3 Tannin-Lignin Reagent 100 tests MDB

Total Organic Carbon (TOC)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Direct Method 10128	HR 100 to 700 mg/L C		View		Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Dilution Water, Organic Free 500 mL , Potassium Acid Phthalate 500 g , Total Organic Carbon (TOC) Reagent Set, High Range, 100-700 mg/L, 50/test , Total Organic Carbon (TOC) Standard Solution, 1000 mg/L, 5/pk
Direct Method 10173	MR 15 to 150 mg/L C		View		Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Dilution Water, Organic Free 500 mL , Potassium Acid Phthalate 500 g , Total Organic Carbon (TOC) Standard Solution, 1000 mg/L, 5/pk , Total Organic Carbon (TOC) Reagent Set, Mid Range, 50/test
Direct Method 10129	LR 0.3 to 20.0 mg/L C		View		Sulfuric Acid Standard Solutions, 5.25 N, 100 tests MDB , Dilution Water, Organic Free 500 mL , Potassium Acid Phthalate 500 g , Total Organic Carbon (TOC) Standard Solution, 1000 mg/L, 5/pk , Total Organic Carbon (TOC) Reagent Set, Low Range, 50/test

Total Petroleum Hydrocarbons (TPH)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Immunoassay Method 10050			View		Caps, flip-spout, 2/pkg , Sodium Thiosulfate Standard Solutions 0.1 N 100 mL MDB , Immunoassay Reagent Set, TPH in Water Pocket Colorimeter II Analysis System, up to 18 tests

Toxicity

Method	Range	EDL	Proc.	Approved	Reagent Ordering
ToxTrak Method 10017	0 to 100% Inhibition		View		Water, Deionized 500 mL , BOD Seed Inoculum, POLYSEED, 50 capsules/pk , MEDIA SET, TOTAL BACTERIA COUNT, 15 , Reagent Set, ToxTrak Toxicity, 25-49 tests , Sodium Thiosulfate, Stabilized, Standard Solutions 0.0246 N 100 mL MDB , ToxTrak Accelerator Solution, 15 mL bottle , ToxTrak Reagent, pk/50 Powder Pillows

Triazole

Method	Range	EDL	Proc.	Approved	Reagent Ordering
UV Photolysis Method 8079	Benzotriazole 1.0 to 16.0 mg/L; Tolyltriazole 1.0 to 20.0 mg/L		View		Sulfuric Acid Standard Solutions, 1.000 N, Bottle/100 mL MDB , Benzotriazole Standard Solution (NIST), 500 mg/L, Bottle/100 mL , Rochelle Salt Solution 29 mL DB , Triazole Reagent, pk/100 Powder Pillows

Trihalomethane Formation Potential (THMFP)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Trihalomethane Formation Potential Method 10224			View		Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/16 10 mL Ampules (NIST) , Dilution Water, Organic Free 500 mL , Alkalinity Buffer, pH 8.30, 50 mL sample, pk/25 Powder Pillows , DPD Free Chlorine Reagent, 25 mL Sample, Powder Pillows, PK/100 , DPD Free Chlorine Reagent, 10 mL Sample, SwifTest(TM) Dispenser, 250 Tests , DPD Free Chlorine Reagent, 10 mL, SwifTest(TM) Dispenser Refill Vial, 250 Tests , DPD Free Chlorine Reagent, AccuVac� Ampules, PK/25 , Sodium Hydroxide Standard Solutions 0.100 N 1 L , Sodium Thiosulfate Standard Solutions 0.1 N 100 mL MDB , Buffer, pH 8.00, pk/15 Powder Pillows , Buffer pH 6.86, pk/15 Powder Pillows (color coded red) (NIST) , Sulfuric Acid Standard Solutions, 0.100 N, Bottle/1 L , Buffer, for Amperometric Chlorine, 1 L (phosphate type, pH 7, APHA) , Chlorine Dosing Solution Ampules, 1000 - 1500 mg/L as Cl2, 16/pk , THM Standard, 10 ppm as chloroform, pk/7 , Total Trihalomethanes Reagent Set (Colorimetric method) (THM) 100 tests

Trihalomethanes, Total (THM)

Method	Range	EDL	Proc.	Approved	Reagent Ordering
THM Plus Method 10132	10 to 600 ppb as Chloroform		View		Dilution Water, Organic Free 500 mL , Sodium Thiosulfate Standard Solutions 0.1 N 100 mL MDB , THM Standard, 10 ppm as chloroform, pk/7 , Total Trihalomethanes Reagent Set (Colorimetric method) (THM) 100 tests , THM Reagent 1 Solution, 30 mL, SCDB , THM Reagent 2 Solution, 330 mL , THM Reagent 3 Solution, 100 mL , THM Reagent 4, pk/100 Powder Pillows

Volatile Acids

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Esterification Method 8196	27 to 2800 mg/L		View		Water, Deionized 4 L , Sulfuric Acid Standard Solutions, 19.2 N, Bottle/100 mL MDB , Ethylene Glycol 1 L , Ferric Chloride-Sulfuric Acid Solution 1 L , Hydroxylamine-Hydrochloride Solution 100 mL , Sodium Hydroxide Standard Solutions 4.5 N 1 L , Volatile Acids Reagent Set, 90 tests , Volatile Acids Standard Solutions as Acetic Acid (NIST), pk/16 - 10 mL Voluette� Ampule
Sodium Hydroxide Method 8218	100 to 2400 mg/L CH₃COOH		View		Water, Deionized 4 L , Phenolphthalein Indicator, pk/100 Powder Pillows , REAGENT SET, VOLATILE ACIDS DT , Sodium Hydroxide Cartridges for Digital Titrator 0.9274 N
Buret Titration Method 8291	100 to 2400 mg/L as CH₃COOH		View		Sodium Hydroxide Standard Solutions 0.100 N 1 L , Phenolphthalein Indicator, pk/100 Powder Pillows

Zinc

Method	Range	EDL	Proc.	Approved	Reagent Ordering
Zincon Method 8009	0.01 to 3.00 mg/L³		View		Nitric Acid (500 mL) , Sodium Hydroxide Standard Solutions 5.0 N 50 mL SCDB , Water, Deionized 4 L , Hydrochloric Acid Standard Solutions, 6.0 N (1:1), 500 mL , Cyclohexanone, ACS, Bottle/100 mL , Zinc Reagent Set, 20-mL sample size, 100 tests , Zinc Reagent, ZincoVer� 5, 100 mg/L, pk/100 Powder Pillows , Zinc Standard Solution as Zn (NIST) 100 mg/L, 100 mL , Zinc Standard Solutions as Zn (NIST) 1000 mg/L, 100 mL , Zinc Standard Solutions as Zn (NIST) 25 mg/L, pk/16 10 mL Voluette� Ampules

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