1. ISO 5167: Measurement of fluid flow by means of pressure differential devices, part 1: Orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full,1991
2. ISO 9951: Measurement of gas flow in closed conduits-turbine meters,1993
3. Intercomparison campaign on high-pressure gas flow test facilities;Spencer;EEC Report EUR 6662EN,1979
4. Calibration of the EEC Nozzle Transfer Package;Van der Kam;EEC Report EUR 11862,1989
5. The effect of double bends out of plane on turbine meters;Van der Kam;Flow Meas. Instrum.,1991