This calculates the flow totals for an orifice plate based metering system according to the AGA 3 standard.
AGA Report No. 3 – Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids/Manual of Petroleum Measurement Standards Chapter 14 – Natural Gas Fluids Measurement Section 3 – Concentric, Square-Edged Orifice Meters:
Part 1 – General Equations and Uncertainty Guidelines (Third Edition, September 1990)
Part 3 – Natural Gas Applications (Third Edition, August 1992)
Part 4 – Background, Development, Implementation Procedures and Subroutine Documentation (Third Edition, November 1992)
Kelton calculation reference C267
KIMS Calculation reference K127