Standard No.:	GB/T 12085.5-2010
English Name:	Optics and optical instruments—Environmental test methods—Part 5:Combined cold low air pressure
Chinese Name:	光学和光学仪器　环境试验方法　第5部分：低温、低气压综合试验
Chinese Classification:	N30    Optical instrument in general
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ;SAC
Issued on:	2011-1-14
Implemented on:	2011-5-1
Status:	superseded
Superseded by:	GB/T 12085.23-2022 Optics and photonics—Environmental test methods—Part 23：Low pressure combined with cold,ambient temperature and dry or damp heat
Superseded on:	2023-5-1
Superseding:	GB/T 12085.5-1989 GB 12085.5-1989 Optics and optical instruments-Environmental test methods-Combined cold low air pressure
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	100.0
Delivery:	via email in 1~3 business day

本部分规定了低温和低气压综合试验的试验条件、条件试验、试验程序及环境试验标记。
本部分适用于在高山地区或飞机仪表盘上或导弹上使用的光学仪器、装有光学零部件的仪器和光学零部件。
本试验目的是研究试样的光学、热学、化学和电学等特性受到低温与低气压影响的变化程度，包括测定水的冷凝和冻结对仪器或零部件的附加影响。