美国CHEMetrics K-4250型甲醛比色法快速水质分析套件
Formaldehyde Visual Kit
Range:  0.5-5%
MDL:  0.50% / Method: Acid Titrant with Thymolphthalein Indicator
美国CHEMetrics代理商：上海益朗仪器有限公司
Titrets Kit K-4250
Increments:
0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80, 0.90, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, 3.5, 5.0%
Kit comes in a cardboard box and contains everything needed to perform 30 tests （except distilled water）:  thirty ampoules with valve assemblies, Indicator Solution, titrettor , 25 mL sample cup, instructions, and MSDS.