Describes the measuring conditions, requirements and tests for the construction, performance and safety of class 1,0 axial and radial turbine gas meters with mechanical indicating devices, herein after referred to as a meter(s), having in-line pipe connections for gas flow measurement.

NEN EN 12261:2002 - Identical

UNE EN 12261:2003 - Identical

NS EN 12261:2002 - Identical

I.S. EN 12261:2002 - Identical

UNI EN 12261:2006 - Identical

NF EN 12261:2002 - Identical

NBN EN 12261:2002 - Identical

ONORM EN 12261:2007 - Identical

DIN EN 12261 (2007-07) - Identical

BS EN 12261:2002 - Identical

SN EN 12261:2002 - Identical

EN 12261:2018 - Identical