当我们按产品标准中规定的方法检验化工产品的质量时,往往需要配制各种溶液,本文就化工标准中常用的溶液作以下几方面介绍。一、各种溶液的名称及应用(一)名称过去,习惯上把溶液分成两类,一类是具有已知准确浓度的溶液,统称为标准溶液。根据用途不同,又分成滴定分析用标准溶液、杂质测定用标准溶液、对照分析用标 When we test the quality of chemical products by the methods specified in the product standards, we often need to formulate various solutions. In this paper, we introduce the commonly used solutions in chemical standards in the following aspects. First, the names and applications of various solutions (a) the name of the past, the habit of the solution is divided into two categories, one is the solution with the known exact concentration, collectively referred to as the standard solution. According to different purposes, but also divided into titration standard solution, the standard solution for the determination of impurities, control analysis standard