Specifies the test gases, test pressures and categories of appliances relative to the use of combustible gases of the first, second and third families. Also gives detailed definitions.

ONORM EN 437:2009

NEN EN 437:2003 - Identical

SN EN 437:2003 - Identical

DIN EN 437 (1999-12) - Identical

UNI EN 437:2009 - Identical

DIN EN 437 (2003-09) - Identical

SS EN 437 Ed. 2 (2003) - Identical

UNE EN 437:2003 - Identical

NS EN 437:2003 - Identical

UNI EN 437:2005 - Identical

I.S. EN 437:2003 - Identical

NF EN 437:2003 - Identical

BS EN 437:2003+A1:2009 - Identical

NBN EN 437:2003 - Identical