Over deze norm
||Debiet- en hoeveelheidsmeting
Specifies ranges, construction, performances, output characteristics and testing of rotary displacement meters (hereinafter referred to as RD meters or simply meters) for gas volume measurement. It applies to meters being able to receive a CEN qualification approval; to fuel gases of the 1st, 2nd and 3rd families; to gas pressure up to pmax=16 bar; over a gas temperature range of at least -10°C to +40°C. Unless otherwise specified in this standard, all pressures used are gauge pressures.