Buffers & Accessories


Hach pH buffer solutions are essential calibration standards for laboratory water quality analysis, providing certified accuracy with Certificate of Conformity and Traceability from their accredited laboratory for critical applications in pH, ORP, and ISE testing protocols. These buffer solutions are designed to work with Hach's pH probes and meters that are programmed to automatically adjust to provide true values over a wide temperature range, ensuring precise and reliable measurements in laboratory water quality testing applications.

Core & Main ORP Standard, 600 mV +/-5% @ 25°C, 500 mL
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Core & Main ORP Standard, 600 mV +/-5% @ 25°C, 500 mL
$37.50

Mfr. Part # OR4600-P

Product # 707123

Core & Main ORP Standard, 400 mV +/-5% @ 25°C, 500 mL
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Core & Main ORP Standard, 400 mV +/-5% @ 25°C, 500 mL
$37.50

Mfr. Part # OR4400-P

Product # 707122

Core & Main ORP Standard, 200 mV +/-5% @ 25°C, 500 mL
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Core & Main ORP Standard, 200 mV +/-5% @ 25°C, 500 mL
$37.50

Mfr. Part # OR4200-P

Product # 707121

Hach 3 each 10 mL printed tubes, for sensION+ portable pH calibration, LZW9137.97
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Hach 3 each 10 mL Printed Tubes for sensION+ Portable pH Calibration LZW9137.97
$19.79

Mfr. Part # LZW9137.97

Product # 703803

Hach 3 each 50 mL printed containers for Sension+ laboratory pH calibration, LZW9110.97
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Hach 3 each 50 mL Printed Containers for Sension+ Laboratory pH Calibration LZW9110.97
$19.89

Mfr. Part # LZW9110.97

Product # 703798

Hach Soaker Bottle for Electrode Storage, 5192900
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Hach Soaker Bottle for Electrode Storage, 5192900
$11.15

Mfr. Part # 5192900

Product # 702181

Hach Luer Lock Dispensing Cap Kit for 59 mL Bottle (2656826), 2965700
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Hach Luer Lock Dispensing Cap Kit for 59 mL Bottle (2656826), 2965700
$16.29

Mfr. Part # 2965700

Product # 702014

Hach pH Electrode Storage Bottle, 9260300
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Hach pH Electrode Storage Bottle, 9260300
$15.40

Mfr. Part # 9260300

Product # 702473

Hach Universal Probe St& for St&ard IntelliCAL® Probes, 8508850
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Hach Universal Probe Stand for Standard IntelliCAL Probes 8508850
$321.00

Mfr. Part # 8508850

Product # 702367

Hach Certified Buffer Standard Solution, IUPAC, pH 12.45, 500 mL, S11M008
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Hach Certified Buffer Standard Solution, IUPAC, pH 12.45, 500 mL, S11M008
$67.15

Mfr. Part # S11M008

Product # 704040

Hach Certified Buffer Standard Solution, IUPAC, pH 9.180, 500 mL, S11M006
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Hach Certified Buffer Standard Solution, IUPAC, pH 9.180, 500 mL, S11M006
$67.15

Mfr. Part # S11M006

Product # 704038

Hach Certified Buffer Standard Solution, IUPAC, pH 7.413, 500 mL, S11M005
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Hach Certified Buffer Standard Solution, IUPAC, pH 7.413, 500 mL, S11M005
$67.15

Mfr. Part # S11M005

Product # 704037

Hach Certified Buffer Standard Solution, IUPAC, pH 1.679, 500 mL, S11M001
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Hach Certified Buffer Standard Solution, IUPAC, pH 1.679, 500 mL, S11M001
$67.15

Mfr. Part # S11M001

Product # 704033

Hach ORP Standard, Light's Solution Ampules, 20 mL, pk/25, 2612520
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Hach ORP Standard, Light's Solution Ampules, 20 mL, pk/25, 2612520
$261.00

Mfr. Part # 2612520

Product # 701755

Hach SensION+, standard redox solution, 220 mV, 1000ml, LZW9401.99
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Hach SensION+, Standard Redox Solution, 220 mV, 1000mL, LZW9401.99
$134.00

Mfr. Part # LZW9401.99

Product # 703814

Hach pH Electrode Filling Solution, 65 mL, 5194100
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Hach pH Electrode Filling Solution, 65 mL, 5194100
$22.35

Mfr. Part # 5194100

Product # 702190

Hach Electrode Cleaning Solution for Minerals/Inorganic Samples, 500 mL, 2975149
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Hach Electrode Cleaning Solution for Minerals/Inorganic Samples, 500 mL, 2975149
$55.59

Mfr. Part # 2975149

Product # 702040

Hach Reducing Solution, ORP Electrodes, 2965349
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Hach Reducing Solution, ORP Electrodes, 2965349
$46.69

Mfr. Part # 2965349

Product # 702012

Hach Electrode Cleaning Solution for Fats, Oils and Grease Samples, 500 mL, 2964449
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Hach Electrode Cleaning Solution for Fats Oils & Grease Samples 500 mL 2964449
$41.50

Mfr. Part # 2964449

Product # 702007

Hach Certified Buffer Standard Solution, IUPAC, pH 10.012, 500 mL, S11M007
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Hach Certified Buffer Standard Solution, IUPAC, pH 10.012, 500 mL, S11M007
$67.15

Mfr. Part # S11M007

Product # 704039

Hach Certified Buffer Standard Solution, IUPAC, pH 4.005, 500 mL, S11M002
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Hach Certified Buffer Standard Solution, IUPAC, pH 4.005, 500 mL, S11M002
$67.15

Mfr. Part # S11M002

Product # 704034

Hach Certified Buffer Standard Solution, pH 7.000, 500 mL, S11M004
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Hach Certified Buffer Standard Solution, pH 7.000, 500 mL, S11M004
$67.15

Mfr. Part # S11M004

Product # 704036

Hach Certified Buffer Standard Solution, IUPAC, pH 6.865, 500 mL, S11M003
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Hach Certified Buffer Standard Solution, IUPAC, pH 6.865, 500 mL, S11M003
$67.15

Mfr. Part # S11M003

Product # 704035

Hach Electrode Cleaning Solution for Regular Maintenance, 500 mL, 2965249
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Hach Electrode Cleaning Solution for Regular Maintenance, 500 mL, 2965249
$58.35

Mfr. Part # 2965249

Product # 702011

Hach ZoBell's ORP/Redox Standard Solution, 500 mL, 2316949
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Hach ZoBell's ORP/Redox Standard Solution, 500 mL, 2316949
$88.89

Mfr. Part # 2316949

Product # 701422

Hach pH Electrode Storage Solution, 500 mL, 2756549
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Hach pH Electrode Storage Solution, 500 mL, 2756549
$59.55

Mfr. Part # 2756549

Product # 701891

Hach pH Electrode Storage Solution Powder Pillows, pk/20, 2657364
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Hach pH Electrode Storage Solution Powder Pillows, pk/20, 2657364
$57.79

Mfr. Part # 2657364

Product # 701782

Hach pH Electrode Storage Solution, 50 mL, 2756526
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Hach pH Electrode Storage Solution, 50 mL, 2756526
$19.25

Mfr. Part # 2756526

Product # 701890

Hach Buffer Solution, pH 7.00, 25 mL, 1222220
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Hach Buffer Solution, pH 7.00, 25 mL, 1222220
$24.65

Mfr. Part # 1222220

Product # 700922

Hach Buffer Powder PIllows, pH 4.01 & pH 7.00, pk/2x15, 2299264
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Hach Buffer Powder Pillows, pH 4.01 & pH 7.00, 2/pk of 15, 2299264
$22.30

Mfr. Part # 2299264

Product # 700052

Hach Buffer Solution, pH 7.00, Color-coded Yellow, 15 mL, 2283536
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Hach Buffer Solution, pH 7.00, Color-coded Yellow, 15 mL, 2283536
$8.65

Mfr. Part # 2283536

Product # 701389

Hach Buffer Solution, pH 4.01, Color-coded Red, 15 mL, 2283436
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Hach Buffer Solution, pH 4.01, Color-coded Red, 15 mL, 2283436
$8.65

Mfr. Part # 2283436

Product # 701387

Hach Buffer Solution, pH 10.01, 1 L , LZW9472.99
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Hach Buffer Solution, pH 10.01, 1 L, LZW9472.99
$46.65

Mfr. Part # LZW9472.99

Product # 703823

Hach Buffer Solution, pH 7.00, 1 L, LZW9467.97
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Hach Buffer Solution, pH 7.00, 1 L, LZW9467.97
$46.65

Mfr. Part # LZW9467.97

Product # 703820

Hach Buffer Solution, pH 10.01, 250 mL, LZW9471.99
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Hach Buffer Solution, pH 10.01, 250 mL, LZW9471.99
$24.29

Mfr. Part # LZW9471.99

Product # 703822

Hach Buffer Solution, pH 10.01, 125 mL, LZW9470.99
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Hach Buffer Solution, pH 10.01, 125 mL, LZW9470.99
$19.75

Mfr. Part # LZW9470.99

Product # 703821

Hach Buffer Solution, pH 4.01, 1 L, LZW9466.99
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Hach Buffer Solution, pH 4.01, 1 L, LZW9466.99
$46.65

Mfr. Part # LZW9466.99

Product # 703819

Hach Buffer Solution, pH 7.00, 250mL, LZW9464.97
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Hach Buffer Solution, pH 7.00, 250mL, LZW9464.97
$24.29

Mfr. Part # LZW9464.97

Product # 703818

Hach Buffer Solution, pH 4.01, 250 mL, LZW9463.99
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Hach Buffer Solution, pH 4.01, 250 mL, LZW9463.99
$24.29

Mfr. Part # LZW9463.99

Product # 703817

Hach Buffer Solution, pH 7.00, 125mL, LZW9461.97
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Hach Buffer Solution, pH 7.00, 125mL, LZW9461.97
$19.75

Mfr. Part # LZW9461.97

Product # 703816

Hach Buffer Solution, pH 4.01, 125 mL, LZW9460.99
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Hach Buffer Solution, pH 4.01, 125 mL, LZW9460.99
$19.75

Mfr. Part # LZW9460.99

Product # 703815

Hach Buffer Powder Pillows, pH 8.30, 50 mL, pk/25, 89868
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Hach Buffer Powder Pillows, pH 8.30, 50 mL, pk/25, 89868
$31.69

Mfr. Part # 89868

Product # 700691

Hach Buffer Powder Pillows, pH 4.50, 50 mL, pk/25, 89568
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Hach Buffer Powder Pillows, pH 4.50, 50 mL, pk/25, 89568
$31.35

Mfr. Part # 89568

Product # 700690

Hach Buffer Powder Pillows, pH 4.01 Color-coded Red, pk/15, 2226995
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Hach Buffer Powder Pillows, pH 4.01, Color-coded Red, Pack of 15, 2226995
$18.15

Mfr. Part # 2226995

Product # 700049

Hach SINGLET™ Single-Use pH Buffer Kit, pH 7.00 & 10.01, pk/2x10, 2769820
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Hach SINGLET Single-Use pH Buffer Kit pH 7.00 & 10.01 2/pk of 10 2769820
$50.79

Mfr. Part # 2769820

Product # 700048

Hach SINGLET™ Single-Use pH Buffer Kit, pH 4.01 & 7.00, 2/pk of 10, 2769920
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Hach SINGLET Single-Use pH Buffer Kit pH 4.01 & 7.00 2/pk of 10 2769920
$50.79

Mfr. Part # 2769920

Product # 700047

Hach Buffer Solution Kit, Color-coded, pH 4.01, pH 7.00 and pH 10.01, 20 L, 2507300
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Hach Buffer Solution Kit Color-coded pH 4.01 pH 7.00 & pH 10.01 20 L 2507300
$406.00

Mfr. Part # 2507300

Product # 700080

Hach Buffer Solution, pH 10.01, Color-coded Blue, 20 L, 2283661
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Hach Buffer Solution, pH 10.01, Color-coded Blue, 20 L, 2283661
$209.00

Mfr. Part # 2283661

Product # 700075