Lead Acetate Test Paper, Detects Hydrogen Sulfide in Water in Concentrations as Low as 5ppm, Use this Test Paper to Test Your Drinking Water, Well Water or Groundwater
Lead Acetate Test Paper, Detects Hydrogen Sul
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Potassium Iodide Starch Test Paper, Detects Free Iodine, Chlorine and Peroxides in Solution, Lower Levels React with the Strip at 5 to 10 ppm, Iodine Requires Approximately 60 Seconds to React
Potassium Iodide Starch Test Paper, Detects F
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