Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids - Concentric@ Square‐edged Orifice Meters Part 2: Specification and Installation Requirements (Fifth Edition; ERTA 1: March 2017; ERTA 2: January 2019)
General This document establishes design and installation parameters for measurement of fluid flow using concentric@ squareedged@ flanged tapped orifice meters.