Lab Meters and Probes: Calibration Standards pH Buffers

pH Buffers

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Hach calibration pH buffers are available in a variety of colour-coded or colourless solutions, in different packaging types and sizes from 15 mL up to 20 L. pH buffers are also available in convenient single-use pouches (Singlet) and unit-dose powder pillows for on-site and field analyses ensuring freshness, eliminating the possibility of contamination. All Hach pH buffers are NIST traceable for optimum pH electrode calibration with an accuracy of ±0.02 pH at 25 °C. For all Hach buffers, a specific Certificate of Analysis is available for download from www.hach.com: Support/Service, Certificate of Analysis menu, using product part number and batch number.

For critical applications and metrology needs, Hach offers pH Buffer IUPAC Standard Solutions with Certificate of Conformity and Traceability from our Accredited Laboratory (www.hach.com/coa). The certificate is reporting the exact pH buffer value with related expanded uncertainty (k=2). pH Buffers solutions are traceable to IUPAC/NIST pH scale. They are offering a unique extended shelf-life period thanks to a premium aluminium packaging.

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Sort Ascending Sort Descending Part Number	Sort Ascending Sort Descending 1.09 ±0.02 pH at 25°C 1.679 ±0.010 pH at 25°C 10.01 ±0.02 pH at 25°C 10.012 ±0.010 pH at 25°C 10.01 pH ± 0.02 pH at 25 °C 12.45 ±0.05 pH at 25°C 4.005 ±0.010 pH at 25°C 4.01 4.01, 7.00 & 10.01 ±0.02 pH at 25°C 4.01 & 7.00 ±0.02 pH at 25°C 4.01 ± 0.02 pH 4.01 ±0.02 pH at 25°C 4.65 ±0.02 pH at 25°C 6.00 ±0.02 pH at 25°C 6.86 ±0.02 pH at 25°C 6.865 ±0.010 pH at 25°C 7.00 & 10.01 ±0.02 pH at 25°C 7.00 ± 0.02 pH 7.00 ±0.02 pH at 25°C 7.000 ±0.010 pH at 25°C 7.413 ±0.010 pH at 25°C 8.00 ±0.02 pH at 25°C 9.00 ±0.02 pH at 25°C 9.180 ±0.010 pH at 25°C pH Value(s)	Sort Ascending Sort Descending No Yes Color coded?	Sort Ascending Sort Descending Bag-in-box (BiB) Bottle Powder Pillows Singlet Package Type	Sort Ascending Sort Descending 1000 mL 125 mL 125 mL (US) 15 mL 15 pcs 1 L 1 L (4 x 250 mL) 20 L 20 pcs 250 mL 250 mL (US) 250 pcs 25 mL 2 pks of 10 pcs 30 pcs 3 pk of 20 L 3 pk of 4 L 3 pk of 500 mL 4 L 500 mL 50 mL 50 pcs Quantity	MYR Price
2947600 Compare	4.01, 7.00 & 10.01 ±0.02 pH at 25°C	Yes	Bottle	3 pk of 500 mL	Contact Hach
2770020 Compare	4.01 ±0.02 pH at 25°C	Yes	Singlet	20 pcs	Contact Hach
2770120 Compare	7.00 ±0.02 pH at 25°C	Yes	Singlet	20 pcs	Contact Hach
LZW9470.99 Compare	10.01 ±0.02 pH at 25°C	No	Bottle	125 mL	Contact Hach
LZW9472.99 Compare	10.01 ±0.02 pH at 25°C	No	Bottle	1 L (4 x 250 mL)	Contact Hach
LZW9471.99 Compare	10.01 ±0.02 pH at 25°C	No	Bottle	250 mL	Contact Hach
2283656 Compare	10.01 ±0.02 pH at 25°C	Yes	Bottle	4 L	Contact Hach
2770220 Compare	10.01 ±0.02 pH at 25°C	Yes	Singlet	20 pcs	Contact Hach
2227066-MY Compare	7.00 ±0.02 pH at 25°C	Yes	Powder Pillows	50 pcs	Contact Hach
2227195 Compare	10.01 ±0.02 pH at 25°C	Yes	Powder Pillows	15 pcs	Contact Hach