در حال نمایش 2 نتیجه
For free chlorine determination by the DPD Free Chlorine method. USEPA accepted for reporting for drinking water analysis using Hach Method 8021. Range: 0.02 - 2.00 mg/L Cl₂. Sample Size: 10 mL. Pack of 100 powder pillows. Boric Acid free!
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