ریجنت آمپولی برای اندازه گیری فلوراید با متد Hach SPADNS 2 SPADNS 2 (Arsenic-free) Fluoride Reagent AccuVac® Ampules, pk/25 For determination of Fluoride by Hach SPADNS 2 Method 10225, using AccuVac® Ampules. The SPADNS 2 reagent formulation removes interference from chlorine without arsenic. EPA Compliant for use in Drinking Water and Wastewater reporting programs and equivalent to the EPA reference method SM 4500-F D. Range: 0.02 - 2.00 mg/L F- Pack of 25 ampules