Chlorine Standards


Certified reference materials for chlorine testing.


Calibrate instruments with trusted chlorine standards. These solutions help laboratories, water treatment plants, and industrial facilities verify test accuracy.

Core & Main Chlorine Standard, 1000ppm as Cl₂, 1 L
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Core & Main Chlorine Standard, 1000ppm as Cl₂, 1 L
$47.75

Mfr. Part # CH9210-Q

Product # 706973

Core & Main Chlorine Standard, 1000ppm as Cl₂, 500 mL
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Core & Main Chlorine Standard, 1000ppm as Cl₂, 500 mL
$37.50

Mfr. Part # CH9210-P

Product # 706972

Core & Main Chlorine Standard, 100ppm as Cl₂, 1 L
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Core & Main Chlorine Standard, 100ppm as Cl₂, 1 L
$39.15

Mfr. Part # CH9200-Q

Product # 706971

Core & Main Chlorine Standard, 100ppm as Cl₂, 500 mL
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Core & Main Chlorine Standard, 100ppm as Cl₂, 500 mL
$26.05

Mfr. Part # CH9200-P

Product # 706970

Hach Blanking Reagent for ULR Chlorine, 29 mL, 2493023
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Hach Blanking Reagent for ULR Chlorine, 29 mL, 2493023
$21.99

Mfr. Part # 2493023

Product # 701636

Hach Chlorine Dosing Solution Ampules, 1000 - 1500 mg/L as Cl2, 16/pk, 2504810
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Hach Chlorine Dosing Solution Ampules, 1000 - 1500 mg/L as Cl2, 16/pk, 2504810
$90.79

Mfr. Part # 2504810

Product # 701652

Hach Chlorine Standard Solution, 50-75 mg/L as Cl₂, 1426810
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Hach Chlorine Standard Solution, 50-75 mg/L as Cl₂, 1426810
$94.95

Mfr. Part # 1426810

Product # 700988

Hach Chlorine Standard Solution, 50-75 mg/L as Cl2, 2 mL PourRite, Pack of 20, 1426820
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Hach Chlorine Standard Solution, 50-75 mg/L as Cl2, 2 mL PourRite, Pack of 20, 1426820
$86.35

Mfr. Part # 1426820

Product # 700989

Hach Chlorine Standard Solution, 25-30 mg/L as Cl₂, 2 mL PourRite, Pack of 20, 2630020
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Hach Chlorine Standard Solution, 25-30 mg/L as Cl₂, 2 mL PourRite, Pack of 20, 2630020
$83.25

Mfr. Part # 2630020

Product # 701772

Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine, MR, 2980500
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Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine, MR, 2980500
$330.00

Mfr. Part # 2980500

Product # 700025

Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine, LR, 2635300
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Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine, LR, 2635300
$302.00

Mfr. Part # 2635300

Product # 700020

Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine, HR, 2893300
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Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine, HR, 2893300
$304.00

Mfr. Part # 2893300

Product # 700021