Home / Standards / GB/T 4200-2008 GB/T 4200-2008 Abolished Classified standard of working in the hot environment 高温作业分级 Standard Type GBT ICS 13.100 CCS C71 Status 废止 Issue Date 2008-10-30 Implementation 2009-06-01 Responsible Dept 应急管理部 Drafting Unit 应急管理部