[ASME ASME 2013 Power Conference - Boston, Massachusetts, USA (Monday 29 July 2013)] Volume 2: Reliability, Availability and Maintainability (RAM); Plant Systems, Structures, Components and Materials Issues; Simple and Combined Cycles; Advanced Energy Systems and Renewables (Wind, Solar and Geothermal); Energy Water Nexus; Thermal Hydraulics and CFD; Nuclear Plant Design, Licensing and Construction; Performance Testing and Performance Test Codes - Orifice Flow Calculation: Comparison Between Fluid Meter Applications — 6 th Edition 1971, ASME PTC 19.5-2004 and ISO 5167 2003