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为解决医院污水氯化消毒效果快速监测方法和工具,我们试制成 WC-1型余氯速测比色计。通过几个医院的污水站现场测定,该比色计与余氯标准比色管测定的结果基本相近似。现将有关情况介绍如下。一、标准余氯比色板的制做1.制做标准余氯比色板的色阶材料:采用醋酸纤维型旧电影胶片。用25%铁氰化钾溶液脱色,用30%硫代硫酸钠溶液固定,胶片呈无色透明。取出晾干,将胶片剪成6
To solve the rapid monitoring of chlorinated disinfection of hospital sewage methods and tools, we try to produce WC-1-type chlorine rapid determination of colorimeter. Sewage station through several hospitals on-site determination, the colorimeter and residual chlorine standard colorimetric tube measured results are similar. The relevant information is as follows. First, the standard residual chlorine color plate to do 1. To make a standard residual chlorine color plate material levels: the use of acetate-based old film. Decolourated with 25% potassium ferricyanide solution, fixed with 30% sodium thiosulfate solution, the film was colorless and transparent. Remove to dry, cut the film into 6