TNTplus^TM vial tests deliver "Revolutionary " Benefits! 

Spin One: insert the vial and it spins once as the barcode is scanned. 

• The vial is matched to the correct method in the instrument database.
• No method calibration that matches the vial?  No problem!  The instrument will not allow you to run a method if the method calibration is not suited to your vial.  Instead, the instrument will instruct you how to easily upgrade the calibration,   After the simple software update, you are back on track to perfect analyses.

Spin two: During the measurement phase of the analysis, the vial is rotated through ten incremental steps. 

• An absorbance reading is taken at each step. 
• Thus, each measurement is taken through a new optical path. 
• Dirty vial?  The instrument will tell you to clean it!

After automated method loading, calibration verification, wavelength selection, and ten-fold absorbance measurements, the 'revolutions' are complete.  The mean absorbance value is used to calculate your result in mg/L.

Why a Vial?

• Hands-off chemistry: no pillows to spill, no reagent to measure, no exposure to hands
• Narrow vial neck prevents spillage even if tipped
• A rack is recommended (but the flat bottom is very handy during manipulations)
• The pre-measured single dose of primary reagent is contained in the vial, just add your sample
• No more worries of contaminated sample cells, no more cuvettes to wash
• Recycling and waste disposal is simple--no need to empty the vials**

**When you purchase the Hach ez COD Recycling Service, just toss the vials in the recycling container.  When it is full, a single phone call is all it takes to have your COD waste removed from your facility and process.  Fast, easy, affordable.

Why special caps?

• Additional reagents are contained inside DosiCap^TM, and DosiCap^TM Zip
• These unit-dose reagents are a cinch to deliver--just screw the cap onto the vial and shake
• Nothing to spill
• Zero contamination

The Complete Package!

• Smaller vials (13mm versus 16mm diameter) and more efficient packaging take up less benchspace
• Color-coded cartons, vial caps, and vial labels help you to easily manage your tasks
• Simply follow the Pictogram step-by-step guide for perfect analyses, or follow the more detailed procedure if you need a more in-depth refresher course (a working procedure is packed in every carton).
• All the information you need is now so easily accessible!