Home / Standards / GB/T 1251.3 GB/T 1251.3 Active Ergonomics - system of auditory and visual danger and information signals 人类工效学 险情和信息的视听信号体系 Standard Type GBT ICS 13.180 CCS A25 Status 现行 Issue Date 2008-07-16 Implementation 2009-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委