石油化工可燃气体和有毒气体检测报警设计标准
Specification for design of combustible gas and toxic gas detection and alarm for petrochemical industry
2019-09-22
UNE-EN 50402-2006
Electrical apparatus for the detection and measurement of combustible or toxic gases or vapours or of oxygen - Requirements on the functional safety of fixed gas detection systems
可燃或有毒气体或蒸汽或氧气的检测和测量用电气设备.固定气体检测系统的功能安全要求
2006-11-29
DIN EN 50402
Electrical apparatus for the detection and measurement of combustible or toxic gases or vapours or of oxygen - Requirements on the functional safety of gas detection systems; German version EN 50402:2017
可燃或有毒气体或蒸汽或氧气检测和测量用电气设备——气体检测系统功能安全要求；德文版EN 50402:2017
2018-01-01
VDE 0400-70/DIN EN 50402
Electrical apparatus for the detection and measurement of combustible or toxic gases or vapours or of oxygen Requirements on the functional safety of fixed gas detection systems; German version EN 50402:2005 + A1:2008
用于检测和测量可燃或有毒气体或蒸汽或固定气体检测系统功能安全性氧气要求的电气设备；德文版EN 50402:2005+A1:2008