哈希超低量程总氯余氯测试试剂套件25630
or determination of ultralow Total Chlorine concentrations by the DPD Method. Hach Method 8370. USEPA accepted for drinking water and wastewater analysis. Range: 2 - 500 µg/L Cl2. Reagents are ampuled for stability. Reagent set includes ULR Chlorine Buffer Solution (1.5-mL ampules), DPD Indicator Solution for ULR Chlorine (1.5-mL ampules) and Blanking Reagent for 20 tests.