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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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51350020 Calibration solution pH 7.00, 6 x 250 ml

51350020 Calibration solution pH 7.00, 6 x 250 ml

Buffer solution with a pH value of 7.00 ± 0.02 for calibrating pH meters and electrodes.

SKU: 51350020

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51350010 Buffer pH 10.00, 250 ml

51350010 Buffer pH 10.00, 250 ml

Technical buffer solution for calibration of ph meters and electrodes.

SKU: 51350010

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51350024 Technical buffer pH 10.00, 6 x 250 ml

51350024 Technical buffer pH 10.00, 6 x 250 ml

Buffer solution with a pH value of 10.00 for calibrating pH meters and electrodes.

SKU: 51350024

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51350022 Technical buffer pH 9.21, 6 x 250 ml

51350022 Technical buffer pH 9.21, 6 x 250 ml

pH buffer for calibrating electrodes and pH meters.

SKU: 51350022

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51350018 Technical buffer pH 4.01, 6 x 250 ml

51350018 Technical buffer pH 4.01, 6 x 250 ml

pH buffer with a value of 4.01 for calibrating ph electrodes and ph meters.

SKU: 51350018

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108703 WTW TEP 10: Technical buffer solution, pH 10.01 (1 liter)

108703 WTW TEP 10: Technical buffer solution, pH 10.01 (1 liter)

Buffer solution for pH meters calibration. Ph value is 10.01

SKU: 108703

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108702 WTW TEP 7: Technical buffer solution, pH 7.00 (1 liter)

108702 WTW TEP 7: Technical buffer solution, pH 7.00 (1 liter)

Buffer solution for pH meters calibration. Ph value is 7.00

SKU: 108702

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108700 WTW TEP 4: Technical buffer solution, pH 4.01 (1 liter)

108700 WTW TEP 4: Technical buffer solution, pH 4.01 (1 liter)

Buffer solution for pH meters calibration. Ph value is 4.01

SKU: 108700

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HI7010L buffer pH 10.01, volume 500 ml

HI7010L buffer pH 10.01, volume 500 ml

A pH 10.01 buffer solution is commonly used to calibrate equipment used to analyze samples of water and other liquids.

SKU: HI7010L

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HI7007L buffer solution pH 7.01, volume 500 ml

HI7007L buffer solution pH 7.01, volume 500 ml

pH 7.01 is the most widely used value of all buffer solutions.

SKU: HI7007L

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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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HI7006L Calibration solution pH 6.86, volume 500 ml

HI7006L Calibration solution pH 6.86, volume 500 ml

pH buffer for calibration of pH meters and electrodes, volume 500 ml.

SKU: HI7006L

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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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HI7004L Calibration Buffer pH 4.01

HI7004L Calibration Buffer pH 4.01

A pH buffer with this value is widely used in water treatment plants, the food industry and anywhere a slightly acidic pH is expected.

SKU: HI7004L

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51302047 Buffer pH 7.00 in sachets 30x20 ml

51302047 Buffer pH 7.00 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302047

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30111134 Buffer pH 2.00 in sachets 30x20 ml

30111134 Buffer pH 2.00 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 30111134

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51302069 Buffer pH 4.01 in sachets 30x20 ml

51302069 Buffer pH 4.01 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302069

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30111135 Buffer pH 11.00 in sachets 30x20 ml

30111135 Buffer pH 11.00 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 30111135

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51302070 Buffer pH 9.21 in sachets 30x20 ml

51302070 Buffer pH 9.21 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302070

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51302079 Buffer pH 10.01 in sachets 30x20 ml

51302079 Buffer pH 10.01 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302079

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51302080 Rainbow II pH Buffer Set

51302080 Rainbow II pH Buffer Set

A set of pH calibration solutions in sachets for single use.

SKU: 51302080

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HI77100P Calibration Solutions 1413 µS/cm and pH 7.01 in sachets

HI77100P Calibration Solutions 1413 µS/cm and pH 7.01 in sachets

The HI77100P is a set of high quality 1413 µS/cm conductivity standards and pH 7.01 buffers in easy-to-use disposable sachets.

SKU: HI77100P

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HI6016 Calibration solution pH 1.679 ± 0.002 at 25°C

HI6016 Calibration solution pH 1.679 ± 0.002 at 25°C

HI6016 is a pH 1.679 +/- 0.002 pH calibration buffer.

SKU: HI6016

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HI6010 Calibration solution pH 10.010 ± 0.002 at 25°C

HI6010 Calibration solution pH 10.010 ± 0.002 at 25°C

HI6010 is a pH 10.010 +/- 0.002 pH calibration buffer.

SKU: HI6010

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Sorting: 

51350020 Calibration solution pH 7.00, 6 x 250 ml

51350020 Calibration solution pH 7.00, 6 x 250 ml

Buffer solution with a pH value of 7.00 ± 0.02 for calibrating pH meters and electrodes.

SKU: 51350020

View product Compare

51350010 Buffer pH 10.00, 250 ml

51350010 Buffer pH 10.00, 250 ml

Technical buffer solution for calibration of ph meters and electrodes.

SKU: 51350010

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51350024 Technical buffer pH 10.00, 6 x 250 ml

51350024 Technical buffer pH 10.00, 6 x 250 ml

Buffer solution with a pH value of 10.00 for calibrating pH meters and electrodes.

SKU: 51350024

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51350022 Technical buffer pH 9.21, 6 x 250 ml

51350022 Technical buffer pH 9.21, 6 x 250 ml

pH buffer for calibrating electrodes and pH meters.

SKU: 51350022

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51350018 Technical buffer pH 4.01, 6 x 250 ml

51350018 Technical buffer pH 4.01, 6 x 250 ml

pH buffer with a value of 4.01 for calibrating ph electrodes and ph meters.

SKU: 51350018

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108703 WTW TEP 10: Technical buffer solution, pH 10.01 (1 liter)

108703 WTW TEP 10: Technical buffer solution, pH 10.01 (1 liter)

Buffer solution for pH meters calibration. Ph value is 10.01

SKU: 108703

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108702 WTW TEP 7: Technical buffer solution, pH 7.00 (1 liter)

108702 WTW TEP 7: Technical buffer solution, pH 7.00 (1 liter)

Buffer solution for pH meters calibration. Ph value is 7.00

SKU: 108702

View product Compare

108700 WTW TEP 4: Technical buffer solution, pH 4.01 (1 liter)

108700 WTW TEP 4: Technical buffer solution, pH 4.01 (1 liter)

Buffer solution for pH meters calibration. Ph value is 4.01

SKU: 108700

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HI7010L buffer pH 10.01, volume 500 ml

HI7010L buffer pH 10.01, volume 500 ml

A pH 10.01 buffer solution is commonly used to calibrate equipment used to analyze samples of water and other liquids.

SKU: HI7010L

View product Compare

HI7007L buffer solution pH 7.01, volume 500 ml

HI7007L buffer solution pH 7.01, volume 500 ml

pH 7.01 is the most widely used value of all buffer solutions.

SKU: HI7007L

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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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HI7006L Calibration solution pH 6.86, volume 500 ml

HI7006L Calibration solution pH 6.86, volume 500 ml

pH buffer for calibration of pH meters and electrodes, volume 500 ml.

SKU: HI7006L

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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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HI7004L Calibration Buffer pH 4.01

HI7004L Calibration Buffer pH 4.01

A pH buffer with this value is widely used in water treatment plants, the food industry and anywhere a slightly acidic pH is expected.

SKU: HI7004L

View product Compare

51302047 Buffer pH 7.00 in sachets 30x20 ml

51302047 Buffer pH 7.00 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302047

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30111134 Buffer pH 2.00 in sachets 30x20 ml

30111134 Buffer pH 2.00 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 30111134

View product Compare

51302069 Buffer pH 4.01 in sachets 30x20 ml

51302069 Buffer pH 4.01 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302069

View product Compare

30111135 Buffer pH 11.00 in sachets 30x20 ml

30111135 Buffer pH 11.00 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 30111135

View product Compare

51302070 Buffer pH 9.21 in sachets 30x20 ml

51302070 Buffer pH 9.21 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302070

View product Compare

51302079 Buffer pH 10.01 in sachets 30x20 ml

51302079 Buffer pH 10.01 in sachets 30x20 ml

Disposable pH buffer sachets from Mettler Toledo. The solution is poured into the package under controlled conditions, ensuring a fresh and clean solution for every pH electrode calibration.

SKU: 51302079

View product Compare

51302080 Rainbow II pH Buffer Set

51302080 Rainbow II pH Buffer Set

A set of pH calibration solutions in sachets for single use.

SKU: 51302080

View product Compare

HI77100P Calibration Solutions 1413 µS/cm and pH 7.01 in sachets

HI77100P Calibration Solutions 1413 µS/cm and pH 7.01 in sachets

The HI77100P is a set of high quality 1413 µS/cm conductivity standards and pH 7.01 buffers in easy-to-use disposable sachets.

SKU: HI77100P

View product Compare

HI6016 Calibration solution pH 1.679 ± 0.002 at 25°C

HI6016 Calibration solution pH 1.679 ± 0.002 at 25°C

HI6016 is a pH 1.679 +/- 0.002 pH calibration buffer.

SKU: HI6016

View product Compare

HI6010 Calibration solution pH 10.010 ± 0.002 at 25°C

HI6010 Calibration solution pH 10.010 ± 0.002 at 25°C

HI6010 is a pH 10.010 +/- 0.002 pH calibration buffer.

SKU: HI6010

View product Compare