GB/T 32208-2015 in English

《GB/T 32208-2015化学需氧量（COD）测定仪》由TC124（全国工业过程测量控制和自动化标准化技术委员会）归口，主管部门为中国机械工业联合会。
本标准规定了化学需氧量(COD)测定仪的术语和定义、分类、要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于检测生活污水、工业废水和地表水等水体中化学需氧量(COD)的测定仪,其检测原理或检测方法一般采用重铬酸钾氧化―氧化还原滴定法、重铬酸钾氧化―分光光度法和重铬酸钾氧化―库仑滴定法。其他原理或检测方法的化学需氧量(COD)测定仪(以下简称“仪器”)可参考本标准。

Scope

This standard specifies the terms and definitions, classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of chemical oxygen demand (COD) measuring instruments. This standard is applicable to measuring instruments for measuring chemical oxygen demand (COD) in water bodies such as domestic sewage, industrial wastewater and surface water. The detection principle or method generally adopts potassium dichromate oxidation-redox titration Oxidation-spectrophotometry and potassium dichromate oxidation-coulometric titration. Chemical oxygen demand (COD) measuring instruments (hereinafter referred to as "instruments") with other principles or detection methods can refer to this standard.