美國CHEMetrics K-7870型過硫酸鈉比色法快速水質分析套件
Persulfate Visual Kit
Range:  0-7 & 7-70 ppm as Na2S2O8
MDL:  0.35 ppm / Method: Ferric Thiocyanate
美國CHEMetrics代理商：上海益朗儀器有限公司
CHEMets Kit K-7870
CHEMets Refill, 30 ampoules                                                            R-7870
Low Range Comparator
0, 0.7, 1.4, 2.1, 2.8, 4.2, 5.6, 7.0 ppm                                              C-7807
High Range Comparator
7, 14, 21, 28, 35, 42, 49, 56, 70 ppm                                               C-7870
Kit comes in a plastic case and contains everything needed to perform 30 tests:Refill, Low and High Range Comparators, 25 mL sample cup, instructions, and MSDS.