IEC 60746-4:20 18适用于使用膜覆盖安培传感器的分析仪。它适用于适用于含液体的水、超纯水、淡水或饮用水、海水或其他水溶液、来自水体（例如湖泊、河流、河口）的工业或市政废水以及工业工艺流和工艺液体的分析仪。虽然原则上安培氧分析仪适用于气相，但气相性能的表达超出了本文档的范围。本文件适用于指定永久安装在任何位置（室内或室外）使用膜覆盖安培传感器的分析仪。 与上一版相比，此版本包括以下重大技术变更:A）？对术语和定义进行了修订，以满足ISO/IEC指令第2部分:2016的要求。 b）？引用ISO 5814:2012作为在不同压力和温度下具有可变盐含量的水中溶解氧的溶解度表的参考。

IEC 60746-4:2018 applies to analyzers using membrane covered amperometric sensors. It applies to analyzers suitable for use in water containing liquids, ultrapure waters, fresh or potable water, sea water or other aqueous solutions, industrial or municipal waste water from water bodies (e.g. lakes, rivers, estuaries), as well as for industrial process streams and process liquids. Whilst in principle amperometric oxygen-analyzers are applicable in gaseous phases, the expression of performance in the gas phase is outside the scope of this document. This document is applicable to analyzers specified for permanent installation in any location (indoors or outdoors) using membrane-covered amperometric sensors.