Home / Standards / GB/T 14091-2009 GB/T 14091-2009 Active Classification of environmental parameters and their severities for machinery-products 机械产品环境参数分类及其严酷程度分级 Standard Type GBT ICS 19.020 CCS A21 Status 现行 Issue Date 2009-05-06 Implementation 2009-11-01 Responsible Dept 中国电器工业协会 Drafting Unit 中国电器工业协会