pH Buffers

Hach calibration buffers are available in a variety of color-coded and colorless solutions - from bulk 20 L containers down to single-use 15 mL vials. They're also availble in convenient Singlet form and unit-dose powder pillows for on-site analyis. Both Singlets and powder pillows assure freshness and eliminate the possibility of contamination. All buffers are NIST traceable and accurate to ±0.02 pH at 25°C.

For critical applications, Radiometer brand pH buffers accurate to ±0.010 pH at 25°C are available. Each buffer is delivered in an airtight can and is supplied with a Certificate of Conformity and Traceability.
 
2283549

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500 mL Hach Solution 7.00 Yes $13.35
2283649

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500 Hach Solution 10.01 Yes $13.35
2283449

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500 mL Hach Solution 4.01 Yes $13.35
2947600

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(3) 500 mL Hach Solution 4.01, 7.00, 10.01 Yes $27.95
2283556

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4 L Hach Solution 7.00 Yes $52.05
2770120

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pk of 20 Hach Singlet 7.00 Yes $35.39
S11M002

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500 mL Radiometer Analytical Solution 4.005 No $39.85
S11M004

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500 mL Radiometer Analytical Solution 7.00 No $39.85
2283656

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4 L Hach Solution 10.01 Yes $52.05
2770020

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pk of 20 Hach Singlet 4.01 Yes $35.39
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