DIN EN 60721-3-1:1998 环境条件的分类.第3部分:环境参数及其严酷程度的类别.第1节:存储
Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities; section 1: Storage (IEC 60721-3-1:1997); German version EN 60721-3-1:1997