EN 50402:2017 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
European Committee for Electrotechnical Standardization(CENELEC)
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EN 50402:2017
EN 50402:2017 history
2017EN 50402:2017 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
2005EN 50402:2005 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 (Incorporates Amendment A1: 2008)