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Thermodynamic Properties of Natural Gas and Related Gases Using GERG-2008 Equation of State. Original standard API MPMS 14.2.2 2017 draft in PDF full version. Additional info + preview on request

Document status: Active

Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids—Concentric Square-Edged Orifice Meters, Part 1: General Equations and Uncertainty Guidelines. Original standard API MPMS 14.3.1 2012 (2013) in PDF full version. Additional info + preview on request

Document status: Active

Concentric, Square-Edged Orifice Meters, Part 1—General Equations and Uncertainty Guidelines (includes Errata dated July 2013) (ANSI/API MPMS 14.3.1) (AGA Report No. 3, Part 1). Original standard API MPMS 14.3.1 2012 (2017) in PDF full version. Additional info + preview on request

Document status: Active

Concentric, Square-Edged Orifice Meters, Part 2—Specification and Installation R. Original standard API MPMS 14.3.2 2016 in PDF full version. Additional info + preview on request

Document status: Replaced by St API MPMS 14.3.2 2026

Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids—Concentric, Square-Edged Orifice Meters, Part 2—Specification and Installation Requirements. Original standard API MPMS 14.3.2 2016 (2019) in PDF full version. Additional info + preview on request

Document status: Active

Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids—Concentric, Square-Edged Orifice Meters, Part 2—Specification and Installation Requirements. Original standard API MPMS 14.3.2 2016 (2024) in PDF full version. Additional info + preview on request

Document status: Active