Chlorine Test Kit, Free & Total, Visual Colorimetric Analysis, 0-1 & 1-5 ppm DPD Method

CHEMetrics® Chlorine (Free & Total) — CHEMets Visual Test Kit with Reagents for 30 Tests, Range: 0 to 1 and 0 to 5 mg/L (ppm), 5K-2504

Features:

• USEPA-approved DPD Method (References: USEPA Methods for Chemical Analysis of Water and Wastes, Method 330.5 (1983). APHA Standard Methods, 20th ed., pp. 4-63, Method 4500-Cl G (1998))
• Minimum detection limit (MDL): 0.05 mg/L
• Free chlorine reacts with DPD to form a pink product
• In presence of ammonia or amines, some of the chlorine may exist as combined chlorine—combined chlorine will not interfere with the free chlorine results, provided the readings are taken at one minute
• To determine total chlorine (the sum of free and combined), use the A-2500 Activator Solution (potassium iodide) supplied in the kit
• Results expressed as ppm (mg/L) Cl₂
• Appearance: 
  • Ampoules—colorless to light pink liquid
  • Activator solution—colorless to light yellow liquid
• CAS Nos.:
  • Ampoules:
    • Water:  7732-18-5
    • Acetone:  67-64-1
    • Potassium Phosphate, Monobasic:  7778-77-0
    • N,N-Diethyl-p-Phenylenediamine Oxalate:  62637-92-7
    • 2 proprietary ingredients
  • Activator Solution:
    • Potassium Iodide:  7681-11-0
    • Sodium Hydroxide:  1310-73-2
    • Water:  7732-18-5

• Package of Chlorine (Free & Total), 30 ampoules (CHZ-R2500)
• Low range comparator
• High range comparator
• Activator solution (CHZ-A2500-01)
• 25 mL sample cup
• Instructions
• SDS
• Plastic case