
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
出版:British Standards Institution

專家解讀視頻
? British Standards Institution 2013
Amendment notes:
Amendment, June 2009. Amends and replaces BS EN 50402:2005. Corrigendum, October 2010
DIN EN 50402 (2009-01) - Identical
SS EN 50402:2007 - Identical
DIN EN 50402 (2006-03) - Identical
NBN EN 50402:2006 - Identical
NF EN 50402:2005 - Identical
I.S. EN 50402:2005 - Identical
UNE EN 50402:2006 - Identical
NEN EN 50402:2005 - Identical