Fire protection; fire extinguishing media; carbon dioxide (ISO 5923:1989)
防火；灭火介质；二氧化碳（ISO 5923-1989）；德文版EN 25923:1993

1994-01-01

Equipment for fire protection and fire fighting - Fire extinguishing media - Carbon dioxide (ISO 5923:2012); German version EN ISO 5923:2012
消防和灭火设备.灭火介质.二氧化碳（ISO 5923-2012）；德文版EN ISO 5923:2012

2012-12-01

Fire protection - Fire extinguishing media - Carbon dioxide
消防.灭火介质.二氧化碳

1992-12-14