What is BS EN 12261- Turbine gas meters about?
BS EN 12261 specifies 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, hereinafter referred to as a meter(s), having in-line pipe connections for gas flow measurement. BS EN 12261 applies to turbine gas meters used to measure the volume of fuel gases of the 1st and 2nd gas families, at maximum working pressures up to 420 bar, actual flow rates up to 25 000 m3/h over a gas temperature range of at least 40 K and for a climatic environmental temperature range of at least 50 K.
BS EN 12261 applies to meters that are installed in locations with vibration and shocks of low significance and in:
- Closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity or, if specified by the manufacturer
- Open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity and in locations with electromagnetic disturbances
Unless otherwise specified in BS EN 12261:
- All pressures used are gauge
- All influence quantities, except the one under test, are kept relatively constant at their reference value
Who is BS EN 12261- Turbine gas meters for?
BS EN 12261 on turbine gas meters is relevant to:
- Manufacturers of turbine gas meters
- Transport companies
Why should you use BS EN 12261- Turbine gas meters?
Gas meters are required to register the volume of gas consumed within an acceptable degree of accuracy. BS EN 12261 assists the user with turbine gas meters for measuring accuracy of the gas meter.
Adhering to BS EN 12261 will help you manufacture turbine gas meters that comply with regulatory standards. If any significant error in the registered volume can represent a loss to the gas supplier, or the consumer being overbilled. 
