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美國CHEMetrics K-1710型鈣硬度比色法快速水質分析套件
Hardness Visual Kit
Range:  100-1000 ppm as CaCO3
MDL:  100 ppm / Method:  EGTA
美國CHEMetrics代理商：上海益朗儀器有限公司
Hardness （calcium） Titrets Kit , Shelf-life 8 months K-1710
Increments:
100, 110, 120, 130, 140, 150, 160, 180, 200, 250, 300, 350, 400,
500, 700, 1000 ppm
Kit comes in a cardboard box and contains everything needed to perform 30 tests:  thirty ampoules with valve assemblies, Indicator Solution, titrettor, 25 mL sample cup, instructions, and MSDS.