GB/T 20159.4-2011 环境条件分类 环境条件分类与环境试验之间的关系及转换指南 无气候防护场所固定使用 Classification of environmental condition—Guidance for the correlation and transformation of environmental condition classes to the environmental tests—Stationary use at non-weatherprotected locations
Classification of environmental condition—Guidance for the correlation and transformation of environmental condition classes to the environmental tests—Stationary use at non-weatherprotected locations