NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 45544-4 ; VDE 0400-22-4:2017-01 [Withdrawn] referenced in following documents:
Document number | Edition | Title |
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DIN EN 50545-1 ; VDE 0400-80:2017-01 | 2017-01 | Electrical apparatus for the detection and measurement of toxic and combustible gases in car parks and tunnels - Part 1: General performance requirements and test methods for the detection and measurement of carbon monoxide and nitrogen oxides; German version EN 50545-1:2011 + A1:2016 More |