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DIN EN 50057 VDE 0400-4:1999-07

* German Language Version *

Electrical apparatus for the detection and measurement of combustible gases

Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit

German version EN 50057:1998
Class/Status: Standard, withdrawn
Released: 1999-07
VDE Art. No.: 0400013

This Standard is withdrawn and is replaced by the following

Standard
withdrawn:

DIN EN 61779-4 VDE 0400-4:2001-07

Electrical apparatus for the detection and measurement of combustible gases

Performance requirements for group II apparatus indicating a volume fraction up to 100 % lower explosive limit

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