标准摘要
[中文适用范围]： 本文件规定了光学仪器的环境试验方法，包括其他领域的附加组件（例如机械、化学和电子设备），在同等条件下，测试其抵抗低压和寒冷影响的能力，包括水分、环境温度以及干热或湿热的潜在凝结和冻结。 本文件适用于光学仪器，包括其他领域的附加组件，设计用于高山地区或飞机或导弹上的操作和/或运输。 测试的目的是调查低压和低温、环境温度或高温组合对样品的光学、气候、机械、化学和电气（包括静电）性能特性的影响程度。 此外，还可以确定水分凝结和冻结对仪器或组件的额外影响。 例如安装或外部安装在飞机或导弹上或在飞机或飞行物体内部运输的仪器，不提供任何压力平衡。 附录 A 解释了不同类型测试的目的。 [外文原描述]： This document 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 low pressure combined with cold, including the potential condensation and freezing of moisture, ambient temperature, and dry or damp heat. This document is applicable to optical instruments including additional assemblies from other fields, designed for operation and/or transport in high mountainous areas or on board aircraft or missiles. The purpose of the testing is to investigate to what extent optical, climatic, mechanical, chemical, and electrical (including electrostatic) performance characteristics of the specimen are affected by combined low pressure and low, ambient, or high temperature. Furthermore, the additional effects of moisture condensing and freezing on the instrument or components can be determined. Examples are instruments which are installed or externally mounted on aircraft or missiles or transported inside aircraft or flying objects not providing any pressure equalization. Annex A explains the intent of the different types of tests.
英文名称Optics and photonics — Environmental test methods — Part 23: Low pressure combined with cold, ambient temperature and dry or damp heat