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    HomeCatalogReagents and standards HACHStandardspH Buffers

    pH Buffers

    PH buffers are aqueous solutions that maintain a constant pH when combined with small amounts of acids or bases, or when diluted. Buffer solutions usually consist of a combination of a conjugated base and a weak acid that absorbs excess hydrogen atoms to maintain a stable pH. Thus, buffer solutions are excellent for calibrating pH meters and determining the pH of a solution with low uncertainty. The Hach Lange range includes both colorless and color-coded solutions, in various types of packaging from 15 ml to 20 liters. PH buffers are also available in convenient single-use Singlet sachets and in sachets with powder for dilution. All buffer solutions are suitable for optimal calibration of pH electrodes with an accuracy of ± 0.02 pH at 25 °C.

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    Buffer Solution Kit, Colour-coded, pH 4,01, pH 7,00 and pH 10,01

    Buffer Solution Kit, Colour-coded, pH 4,01, pH 7,00 and pH 10,01

    Buffer Solution Kit, Colour-coded, pH 4,01, pH 7,00 and pH 10,01 ±0.02 pH at 25°C.

    SKU: 2947600

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    Singlet Single-Use pH Buffer Kit, pH 4,01 & 7,00

    Singlet Single-Use pH Buffer Kit, pH 4,01 & 7,00

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is ±0.02 at 25°C. Pack of 20 of pH 4,01 & 7,00, 20 mL each.

    SKU: 2769920

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    Buffer Solution, pH 10,01

    Buffer Solution, pH 10,01

    Buffer Solution, concentration pH 10,01 ± 0,02, 500 mL.

    SKU: 1222149

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    Buffer Solution, pH 7,00

    Buffer Solution, pH 7,00

    Buffer Solution, concentration pH 7,00± 0,02, 500 mL.

    SKU: 1222249

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    Buffer solution, pH 4,01

    Buffer solution, pH 4,01

    Buffer Solution, concentration pH 4,01± 0,02, 500 mL.

    SKU: 1222349

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    pH Buffer Solution, pH 10.01

    pH Buffer Solution, pH 10.01

    pH Buffer Solution, concentration pH 10.01± 0,02, 500 mL.

    SKU: 2283649.99

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    pH Buffer Solution, pH 7,00

    pH Buffer Solution, pH 7,00

    pH Buffer Solution, concentration 7,00 ± 0,02 pH, 500 mL.

    SKU: 2283549.99

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    pH Buffer Solution, pH 4.01

    pH Buffer Solution, pH 4.01

    pH Buffer Solution, concentration 4.01 ± 0.02 pH, 500 mL.

    SKU: 2283449.99

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    Certified Buffer Standard Solution, pH 12,45

    Certified Buffer Standard Solution, pH 12,45

    Certified Buffer Standard Solution, pH 12,45 ±0,05 pH at 25°C, 500 mL.

    SKU: S11M008

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    Singlet Single-Use pH Buffer Kit, pH 7,00 & 10,01

    Singlet Single-Use pH Buffer Kit, pH 7,00 & 10,01

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is ±0.02 at 25°C. Pack of 20 of pH 7.00 and 10 of pH 10.01, 20 mL each.

    SKU: 2769820

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    Certified Buffer Standard Solution, pH 10,012

    Certified Buffer Standard Solution, pH 10,012

    Certified Buffer Standard Solution, pH 10,012 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M007

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    Certified Buffer Standard Solution, pH 9,180

    Certified Buffer Standard Solution, pH 9,180

    Certified Buffer Standard Solution, pH 9,180 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M006

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    Buffer Solution, pH 9,23

    Buffer Solution, pH 9,23

    Buffer Solution, concentration pH 9,23 ± 0,02, 500 mL.

    SKU: S11M011

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    Certified Buffer Standard Solution, pH 7,413

    Certified Buffer Standard Solution, pH 7,413

    Certified Buffer Standard Solution, pH 7,413 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M005

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    Singlet Single-Use pH Buffer, pH 10,01

    Singlet Single-Use pH Buffer, pH 10,01

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is 10,01 ±0.02 at 25°C. Pack of 20 of pH 10,01, 20 mL each.

    SKU: 2770220

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    Certified Buffer Standard Solution, pH 7,000

    Certified Buffer Standard Solution, pH 7,000

    Certified Buffer Standard Solution, pH 7,000 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M004

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    Singlet Single-Use pH Buffer, pH 7,00

    Singlet Single-Use pH Buffer, pH 7,00

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is 7,00 ±0.02 at 25°C. Pack of 20 of pH 7,00, 20 mL each.

    SKU: 2770120

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    Certified Buffer Standard Solution, pH 6,865

    Certified Buffer Standard Solution, pH 6,865

    Certified Buffer Standard Solution, pH 6,865 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M003

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    Singlet Single-Use pH Buffer, pH 4,01

    Singlet Single-Use pH Buffer, pH 4,01

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is 4,01 ±0.02 at 25°C. Pack of 20 of pH 4,01 pH, 20 mL each.

    SKU: 2770020

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    Certified Buffer Standard Solution, pH 4,005

    Certified Buffer Standard Solution, pH 4,005

    Certified Buffer Standard Solution, pH 4.005 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M002

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    Buffer Solution, pH 1,09

    Buffer Solution, pH 1,09

    Buffer Solution, concentration pH 1,09 ± 0,02, 500 mL.

    SKU: S11M009

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    Buffer Solution, pH 4,65

    Buffer Solution, pH 4,65

    Buffer Solution, concentration pH 4,65 ± 0,02, 500 mL.

    SKU: S11M010

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    Certified Buffer Standard Solution, pH 1.679

    Certified Buffer Standard Solution, pH 1.679

    Certified Buffer Standard Solution,1.679 ±0.010 pH at 25°C.

    SKU: S11M001

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    Sorting: 

    Buffer Solution Kit, Colour-coded, pH 4,01, pH 7,00 and pH 10,01

    Buffer Solution Kit, Colour-coded, pH 4,01, pH 7,00 and pH 10,01

    Buffer Solution Kit, Colour-coded, pH 4,01, pH 7,00 and pH 10,01 ±0.02 pH at 25°C.

    SKU: 2947600

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    Singlet Single-Use pH Buffer Kit, pH 4,01 & 7,00

    Singlet Single-Use pH Buffer Kit, pH 4,01 & 7,00

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is ±0.02 at 25°C. Pack of 20 of pH 4,01 & 7,00, 20 mL each.

    SKU: 2769920

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    Buffer Solution, pH 10,01

    Buffer Solution, pH 10,01

    Buffer Solution, concentration pH 10,01 ± 0,02, 500 mL.

    SKU: 1222149

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    Buffer Solution, pH 7,00

    Buffer Solution, pH 7,00

    Buffer Solution, concentration pH 7,00± 0,02, 500 mL.

    SKU: 1222249

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    Buffer solution, pH 4,01

    Buffer solution, pH 4,01

    Buffer Solution, concentration pH 4,01± 0,02, 500 mL.

    SKU: 1222349

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    pH Buffer Solution, pH 10.01

    pH Buffer Solution, pH 10.01

    pH Buffer Solution, concentration pH 10.01± 0,02, 500 mL.

    SKU: 2283649.99

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    pH Buffer Solution, pH 7,00

    pH Buffer Solution, pH 7,00

    pH Buffer Solution, concentration 7,00 ± 0,02 pH, 500 mL.

    SKU: 2283549.99

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    pH Buffer Solution, pH 4.01

    pH Buffer Solution, pH 4.01

    pH Buffer Solution, concentration 4.01 ± 0.02 pH, 500 mL.

    SKU: 2283449.99

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    Certified Buffer Standard Solution, pH 12,45

    Certified Buffer Standard Solution, pH 12,45

    Certified Buffer Standard Solution, pH 12,45 ±0,05 pH at 25°C, 500 mL.

    SKU: S11M008

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    Singlet Single-Use pH Buffer Kit, pH 7,00 & 10,01

    Singlet Single-Use pH Buffer Kit, pH 7,00 & 10,01

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is ±0.02 at 25°C. Pack of 20 of pH 7.00 and 10 of pH 10.01, 20 mL each.

    SKU: 2769820

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    Certified Buffer Standard Solution, pH 10,012

    Certified Buffer Standard Solution, pH 10,012

    Certified Buffer Standard Solution, pH 10,012 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M007

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    Certified Buffer Standard Solution, pH 9,180

    Certified Buffer Standard Solution, pH 9,180

    Certified Buffer Standard Solution, pH 9,180 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M006

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    Buffer Solution, pH 9,23

    Buffer Solution, pH 9,23

    Buffer Solution, concentration pH 9,23 ± 0,02, 500 mL.

    SKU: S11M011

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    Certified Buffer Standard Solution, pH 7,413

    Certified Buffer Standard Solution, pH 7,413

    Certified Buffer Standard Solution, pH 7,413 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M005

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    Singlet Single-Use pH Buffer, pH 10,01

    Singlet Single-Use pH Buffer, pH 10,01

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is 10,01 ±0.02 at 25°C. Pack of 20 of pH 10,01, 20 mL each.

    SKU: 2770220

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    Certified Buffer Standard Solution, pH 7,000

    Certified Buffer Standard Solution, pH 7,000

    Certified Buffer Standard Solution, pH 7,000 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M004

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    Singlet Single-Use pH Buffer, pH 7,00

    Singlet Single-Use pH Buffer, pH 7,00

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is 7,00 ±0.02 at 25°C. Pack of 20 of pH 7,00, 20 mL each.

    SKU: 2770120

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    Certified Buffer Standard Solution, pH 6,865

    Certified Buffer Standard Solution, pH 6,865

    Certified Buffer Standard Solution, pH 6,865 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M003

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    Singlet Single-Use pH Buffer, pH 4,01

    Singlet Single-Use pH Buffer, pH 4,01

    pH Buffer Standard Solution for pH electrode calibration. Sealed foil pouches of pH buffers. pH is 4,01 ±0.02 at 25°C. Pack of 20 of pH 4,01 pH, 20 mL each.

    SKU: 2770020

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    Certified Buffer Standard Solution, pH 4,005

    Certified Buffer Standard Solution, pH 4,005

    Certified Buffer Standard Solution, pH 4.005 ±0.010 pH at 25°C, 500 mL.

    SKU: S11M002

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    Buffer Solution, pH 1,09

    Buffer Solution, pH 1,09

    Buffer Solution, concentration pH 1,09 ± 0,02, 500 mL.

    SKU: S11M009

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    Buffer Solution, pH 4,65

    Buffer Solution, pH 4,65

    Buffer Solution, concentration pH 4,65 ± 0,02, 500 mL.

    SKU: S11M010

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    Certified Buffer Standard Solution, pH 1.679

    Certified Buffer Standard Solution, pH 1.679

    Certified Buffer Standard Solution,1.679 ±0.010 pH at 25°C.

    SKU: S11M001

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