Chemistries, Reagents and Standards

Chemistries, Reagents and Standards
Hach has more than 60 years of history dedicated to formulating and packaging high-quality reagents for water analysis. We understand your applications and formulate our reagents to ensure exceptional performance and deliver results you can trust, time after time. Our expertise extends beyond chemistry formulation to the complete reagent system. Hach chemistries are rigorously tested in combination with our packaging and instruments to ensure the highest possible system performance. No other company can offer these advantages.
 
Browse Products by Parameter

Products: Chlorine, Free

PN / Name
Platform
Range
Method
EPA Compliant
Instrument, Test Kit, etc
ZAR Price
104732: Sodium arsenite solution, 5.0 g/L, 100 mL Solution 0.1 - 10.0 mg/L Cl2 10069 DPD, HR Powder Pillows     Contact Hach
Solution 0.05 4.00 mg/L Cl2 10245 DPD, MR Powder Pillows    
Solution 0.02 - 2.00 mg/L Cl₂ 10059 DPD Rapid Liquid Method, Pour-Thru Cell™ DPD Rapid Liquid Method for Free Chlorine    
Solution 0.0 10.0 mg/L Cl2 10069 DR900 UHR    
34332: Potassium iodide solution, 30 g/L, 100 mL MDB Solution 0.1 - 10.0 mg/L Cl2 10069 DPD, HR Powder Pillows     Contact Hach
127032: Sulfuric Acid Standard Solution, 1.000 N, 100 mL MDB Solution 0.02 - 2.00 mg/L Cl₂ 10059 DPD Rapid Liquid Method, Pour-Thru Cell™ DPD Rapid Liquid Method for Free Chlorine     Contact Hach
244953: Standard solution, sulfuric acid , 5.25 N, 1 L Solution 0.02 - 2.00 mg/L Cl₂ 10059 DPD Rapid Liquid Method, Pour-Thru Cell™ DPD Rapid Liquid Method for Free Chlorine     Contact Hach
104732: Sodium arsenite solution, 5.0 g/L, 100 mL Solution 0.09 - 5.00 mg/L Cl2 10102 DPD Test 'N Tube     Contact Hach
34332: Potassium iodide solution, 30 g/L, 100 mL MDB Solution 0.09 - 5.00 mg/L Cl2 10102 DPD Test 'N Tube     Contact Hach
2438800: Chlorine (Free and Total) Reagent Set, 0-3.5 mg/L Cl₂ 0 3.5 mg/L DPD Color Disc   View Contact Hach
2105545: Free Chlorine, Test ’N Tube, 0.09 - 5.00 mg/L Cl₂ Test 'N Tube 0 5.00 mg/L 10102 DR800, Test 'N Tube DPD    
OBSOLETE
2155353: Buffer, phosphate type, pH 7.0, 1 L Solution 0.1 - 5 mg/L Cl₂ AT1000 Amperometric Titration Automatic Titrator Method     Contact Hach
34332: Potassium iodide solution, 30 g/L, 100 mL MDB Solution 0.02 - 2.00 mg/L Cl₂ 10059 DPD Rapid Liquid Method, Pour-Thru Cell™ DPD Rapid Liquid Method for Free Chlorine     Contact Hach
2105545: Free Chlorine, Test ’N Tube, 0.09 - 5.00 mg/L Cl₂ Test 'N Tube 0.09 - 5.00 mg/L Cl2 10102 DPD Test 'N Tube    
OBSOLETE
34332: Potassium iodide solution, 30 g/L, 100 mL MDB Solution 0.0 10.0 mg/L Cl2 10069 DR900 UHR     Contact Hach
Solution 0.05 4.00 mg/L Cl2 10245 DPD, MR Powder Pillows    
127032: Sulfuric Acid Standard Solution, 1.000 N, 100 mL MDB Solution 0.0 10.0 mg/L Cl2 10069 DR900 UHR     Contact Hach
104532: Sodium hydroxide standard solution, 1.000 N, 100 mL MDB Solution 0.09 - 5.00 mg/L Cl2 10102 DPD Test 'N Tube     Contact Hach
127032: Sulfuric Acid Standard Solution, 1.000 N, 100 mL MDB Solution 0.05 4.00 mg/L Cl2 10245 DPD, MR Powder Pillows     Contact Hach
Solution 0.1 - 10.0 mg/L Cl2 10069 DPD, HR Powder Pillows    
2259901: Phenylarsine Oxide (PAO) Digital Titrator Cartridge, 0.00451 N Digital Titrator 0 10 mg/L 8335 Amperometric Titration     Contact Hach
2142001: Phenylarsine Oxide (PAO) Digital Titrator Cartridge, 0.0451 N Digital Titrator 0 10 mg/L 8335 Amperometric Titration     Contact Hach
127032: Sulfuric Acid Standard Solution, 1.000 N, 100 mL MDB Solution 0.09 - 5.00 mg/L Cl2 10102 DPD Test 'N Tube     Contact Hach
104532: Sodium hydroxide standard solution, 1.000 N, 100 mL MDB Solution 0.1 - 10.0 mg/L Cl2 10069 DPD, HR Powder Pillows     Contact Hach
Solution 0.0 10.0 mg/L Cl2 10069 DR900 UHR    
Solution 0.05 4.00 mg/L Cl2 10245 DPD, MR Powder Pillows    
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