NEN 10721-2-4:1989现行
Classification Of Environmental Conditions - Part 2: Environmental Conditions Appearing In Nature - Solar Radiation And Temperature
出版：Nederlands Normalisatie Instituut
专家解读视频
Presents a broad division into types of solar radiation areas. Plans to use as part of the background material when selecting appropriate severities of solar radiation for product applications.
HD 478.2.4 : 200S1 - Identical
IEC 60721-2-4 : 1.1 - Identical
IEC 60721-2-4 : 1.1 - Identical
HD 478.2.4:1989 - Identical
IEC 60721-2-4 Ed. 1.1 - Identical
