Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids-Concentric@ Square-edged Orifice Meters Part 1: General Equations and Uncertainty Guidelines (FOURTH EDITION; ERTA: July 2013)
This standard provides a single reference for engineering equations@ uncertainty estimations@ construction and installation requirements@ and standardized implementation recommendations for the calculation of flow rate through concentric@ square-edged@ flange-tapped orifice meters. Both U.S. customary (USC)@ and international system of units (SI) units are included.