NEN 10721-3-0:1994现行
Classification Of Groups Of Environmental Conditions - Part 3: Classification Of Groups Of Environmental Parameters And Their Severities - Introduction
出版：Nederlands Normalisatie Instituut
专家解读视频
Contains background information including information on application and limitation of the classes. Describes the difference between the environmental conditions the product will meet during its life, and conditions of test used to assure that the product will work satisfactorily under such environmental conditions.
Supersedes NEN HD 478.3.0 (11/2002)
IEC 60721-3-0 : 1.1 - Identical
EN 60721-3-0 : 1993 - Identical
IEC 60721-3-0 Ed. 1.1 - Identical
