GPA 2172 : 2014

Superseded

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CALCULATION OF GROSS HEATING VALUE, RELATIVE DENSITY, COMPRESSIBILITY AND THEORETICAL HYDROCARBON LIQUID CONTENT FOR NATURAL GAS MIXTURES FOR CUSTODY TRANSFER

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Superseded date: 26-09-2019

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Published date: 12-01-2013

Publisher: Gas Processors Association

Table of Contents - (Show below) - (Hide below)

1 Scope
2 Normative References
3 Terms and Definitions
4 Symbols and Abbreviated Terms
5 Background
   5.1 Heating Value
   5.2 Relative Density
   5.3 Compressibility Factor
   5.4 Theoretical Hydrocarbon Liquid Content
6 Summary of Method
7 Equations for Custody Transfer Calculations
   7.1 Gross Heating Value (Volumetric Basis)
   7.2 Relative Density
   7.3 Compressibility Factor
   7.4 Theoretical Hydrocarbon Liquid Content
8 Example Calculations
9 Application Notes and Cautions
10 Precision and Uncertainty
Annex A (informative) - Details of Calculation Methods and
                        Treatment of Water
Annex B (informative) - Calculation of Gas Properties
Annex C (informative) - Water Content Example Calculations
Annex D (informative) - Calculation of NGL Energy Content from
                        Volume
Annex E (informative) - Determination of Gas Energy Content per
                        Unit Mass

Abstract - (Show below) - (Hide below)

Defines procedures for calculating, at base conditions from composition, the following properties of natural gas mixtures: gross heating value, relative density (real and ideal), compressibility factor and theoretical hydrocarbon liquid content which in the U.S. is typically expressed as GPM, the abbreviation for gallons of liquid per thousand cubic feet of gas.

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Development Note	Supersedes GPA RB 181. (09/2014)
Document Type	Standard
ISBN
Pages
Published
Publisher	Gas Processors Association
Status	Superseded
Superseded By	GPA S 2172 : 2019
Supersedes	GPA RB 181 : 1986

Standards Referenced By This Book - (Show below) - (Hide below)

API MPM CH17.10.1 : 2014	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 17.10: MEASUREMENT OF CARGOES ON BOARD MARINE GAS CARRIERS - PART 1: LIQUEFIED NATURAL GAS
API MPM CH14.3.3 : 2013	ORIFICE METERING OF NATURAL GAS AND OTHER RELATED HYDROCARBON FLUIDS - CONCENTRIC, SQUARE-EDGED ORIFICE METERS - PART 3: NATURAL GAS APPLICATIONS
I.S. EN ISO 15112:2014	NATURAL GAS - ENERGY DETERMINATION (ISO 15112:2011)
AGA XQ0901 : 0	AGA REPORT NO. 5, NATURAL GAS ENERGY MEASUREMENT
ASTM D 3588 : 1998	Standard Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels
ASTM D 3588 : 1998 : R2011	Standard Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels
ISO 15112:2011	Natural gas Energy determination
ASTM D 3588 : 1998 : R2003	Standard Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels
API MPM CH22.2 : 2017	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 22 - TESTING PROTOCOL - SECTION 2 - DIFFERENTIAL PRESSURE FLOW MEASUREMENT DEVICES
PD ISO/TR 29922:2017	Natural gas. Supporting information on the calculation of physical properties according to ISO 6976
API TR 2572 : 2013	CARBON CONTENT, SAMPLING, AND CALCULATION
BS ISO 15112 : 2011	NATURAL GAS - ENERGY DETERMINATION
DIN EN ISO 15112:2014-09	Natural gas - Energy determination (ISO 15112: 2011)
UNI EN ISO 15112 : 2014	NATURAL GAS - ENERGY DETERMINATION
ASTM D 3588 : 1998 : R2017	Standard Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels
ASTM D 345 : 2002	Side bearings of the freight wagon bogies. General specifications
BS EN ISO 15112:2014	Natural gas. Energy determination
DIN EN ISO 15112 E : 2014	NATURAL GAS - ENERGY DETERMINATION (ISO 15112:2011)
11/30230600 DC : 0	BS ISO 10976 - REFRIGERATED LIGHT HYDROCARBON FLUIDS - MEASUREMENT OF CARGOES ON BOARD MARINE LNG CARRIERS
BS ISO 10976:2012	Refrigerated light hydrocarbon fluids. Measurement of cargoes on board LNG carriers
API MPM CH22.6 : 2015	MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 22.6: TESTING PROTOCOL FOR GAS CHROMATOGRAPHS
EN ISO 15112:2014	NATURAL GAS - ENERGY DETERMINATION (ISO 15112:2011)
UNE-EN ISO 15112:2014	Natural gas - Energy determination (ISO 15112:2011)
ISO 10976:2015	Refrigerated light hydrocarbon fluids — Measurement of cargoes on board LNG carriers
ISO/TR 29922:2017	Natural gas Supporting information on the calculation of physical properties according to ISO 6976

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