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Water Quality Testing Parameters and Their Chemistries, Reagents, and Standards

Water Quality Testing Parameters and Their Chemistries, Reagents, and Standards
Hach is dedicated to providing high-quality reagents for routine and challenging water analysis. Understanding our customers applications has allowed us to formulate reagents that ensure exceptional performance and deliver trusted results. Hach chemistries are rigorously tested in combination with our packaging and instruments to ensure the highest possible system performance. Our portfolio includes: TNT (Test ‘N Tube) Vials, TNTplus Vials, Permachem Powder Pillows, and Accuvac Ampules.
 
Browse Products by Parameter

Products: Chlorine, Free

PN / Name
Platform
Range
Method
EPA Compliant
Instrument, Test Kit, etc
Web Price
34332: Potassium iodide solution, 30 g/L, 100 mL MDB Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View Contact Hach
Solution 0 - 4.00 mg/L 10245 DR800 DPD Powder Pillows DPD Method Powder Pillows Y  
27256: Water, deionised and demineralised, 4L Solution 0.04 - 4.00 mg/L Cl2 Chemkeys for PPA - Free Chlorine ChemKeys for PPA - Free Chlorine Y   Contact Hach
Solution 0.05 - 2.00 mg/L Cl2 10231 Spectrophotometer,TNTplus DPD Y  
Solution 0 - 1,000 µg/L Cl₂ 10024 Y View
Solution 0 - 4.00 mg/L 10245 DR800 DPD Powder Pillows DPD Method Powder Pillows Y  
1426820: Chlorine Standard Solution, 50-75 mg/L as Cl2, pk/20 - 2 mL PourRite« Ampules Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View Contact Hach
Solution 0 - 1,000 µg/L Cl₂ 10024 Y View
Solution 0.05 - 2.00 mg/L Cl2 10231 Spectrophotometer,TNTplus DPD Y  
Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y  
2630020: Chlorine standard solution, 25-30 mg/L Cl₂, 20 pcs. Solution 0 - 4.00 mg/L 10245 DR800 DPD Powder Pillows DPD Method Powder Pillows Y   Contact Hach
Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y  
Solution 0.05 - 2.00 mg/L Cl2 10231 Spectrophotometer,TNTplus DPD Y  
Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View
199953: Phenylarsine Oxide (PAO) Standard Solution, 0.00564 N, 1 L Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y   Contact Hach
1426810: Chlorine standard solution, 50-75 mg/L Cl₂ Solution 0.04 - 4.00 mg/L Cl2 Chemkeys for PPA - Free Chlorine ChemKeys for PPA - Free Chlorine Y   Contact Hach
Solution 0.05 - 2.00 mg/L Cl2 10231 Spectrophotometer,TNTplus DPD Y  
Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View
Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y  
2641549: Dilution water, organic free, 500 mL Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View Contact Hach
2155332: Buffer, Phosphate Type, pH 7, for Amperometric Chlorine, 100 mL MDB Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y   Contact Hach
199849: Phenylarsine Oxide (PAO) Standard Solution, 0.000564 N, 500 mL Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y   Contact Hach
2155332: Buffer, Phosphate Type, pH 7, for Amperometric Chlorine, 100 mL MDB Solution 0 - 1,000 µg/L Cl₂ 10024 Y View Contact Hach
127032: Sulfuric Acid Standard Solution, 1.000 N, 100 mL MDB Solution 0 - 4.00 mg/L 10245 DR800 DPD Powder Pillows DPD Method Powder Pillows Y   Contact Hach
Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View
104532: Sodium Hydroxide Standard Solution, 1.000 N, 100 mL MDB Solution 0 - 4.00 mg/L 10245 DR800 DPD Powder Pillows DPD Method Powder Pillows Y   Contact Hach
Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View
27253: Water, deionised and demineralised, 1000 mL Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y   Contact Hach
2700349: Phenylarsine Oxide (PAO) Titrant, 0.00564N, 500 mL Solution 0 - 1,000 µg/L Cl₂ 10024 Y View Contact Hach
104732: Sodium Arsenite Solution, 5.0 g/L, 100 mL Solution 0 - 4.00 mg/L 10245 DR800 DPD Powder Pillows DPD Method Powder Pillows Y   Contact Hach
2700349: Phenylarsine Oxide (PAO) Titrant, 0.00564N, 500 mL Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y   Contact Hach
199917: Phenylarsine Oxide (PAO) Standard Solution, 0.00564 N, 3.78 L Solution 0 - 1,000 µg/L Cl₂ 10024 Y View Contact Hach
104732: Sodium Arsenite Solution, 5.0 g/L, 100 mL Solution 0.02 - 2.00 mg/L Cl2 8021 DPD Powder Pillows or AccuVac® Y View Contact Hach
27249: Water, Deionized, 500 mL Solution 0.5 mg/L and above Cl₂ 8334 Amperometric Buret Titration Method Y   Contact Hach
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