標準號：DIN EN 60721-3-4-1995
中文標準名稱：環境條件分類.第3部分:環境參數組分類及其嚴酷程度分級.第4節:在無天氣防護位置固定使用的產品
英文標準名稱：Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 4: Stationary use at non-weatherprotected locations (IEC 60721-3-4:1995); German version EN 60721-3-4:1995
標準類型：A21
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：A21
國際標準分類號：19.040
適用范圍：The environmental conditions specified in this document are limited to those which may directly affect the performance of products. Only environmental conditions as such are considered. No special description of the effects of these conditions on the products is given. Environmental conditions directly related to ionizing radiation are excluded. Any other unforeseen incidents are also excluded. The possibility of their occurrence should be taken into account in special cases.