Home / Standards / GB 935-1989 GB 935-1989 Abolished Limit value of allowable continuous heat exposure time in hot environment 高温作业允许持续接触热时间限值 Standard Type GB ICS 13.100 CCS A25 Status 废止 Issue Date 1989-03-22 Implementation 1989-10-01 Responsible Dept 应急管理部 Drafting Unit N/A