This standard specifies the terminology, classification, technical requirements, test methods, inspection rules and signs of gas detection and alarm devices used in the working environment. This standard applies to detection and alarm devices for flammable gases (including methane), toxic gases and oxygen in the working environment.
GB 12358-1990 history
2006GB 12358-2006 Gas monitors and alarms for workplace.General technical requirements
1990GB 12358-1990 Working environment gas detection and alarm instrument