ISO 9022-7:2015规定了与光学仪器（包括其他领域的附加组件（如机械、化学和电子设备））在同等条件下的环境试验相关的方法，以确定其抵抗滴水或雨水影响的能力。 测试的目的是调查滴水或雨水对试样的光学、气候、机械、化学和电气（包括静电）性能特性的影响程度。在ISO 9022-7:2015中，应忽略空气中杂质对滴水或雨水的污染。

ISO 9022-7:2015 specifies the methods relating to the environmental tests of optical instruments including additional assemblies from other fields (e.g. mechanical, chemical, and electronic devices), under equivalent conditions, for their ability to resist the influence of drip or rain. The purpose of testing is to investigate to what extent the optical, climatic, mechanical, chemical, and electrical (including electrostatic) performance characteristics of the specimen are affected by drip or rain. Contamination of drip or rain water due to impurities in the air is to be ignored for the purposes of ISO 9022-7:2015.