KS C IEC TR 60721-4-4-2023 环境条件分类.第4-4部分:IEC 60721-3的环境条件等级与IEC 60068的环境试验的相关性和转换指南.非气候保护位置的固定使用
Classification of environmental conditions — Part 4-4: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 — Stati