Home / Standards / GB/T 29457-2012 GB/T 29457-2012 Active Grade of the heat wave 高温热浪等级 Standard Type GBT ICS 07.060 CCS A47 Status 现行 Issue Date 2012-12-31 Implementation 2013-05-01 Responsible Dept 中国气象局 Drafting Unit 中国气象局