ASTM D4150-19

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D4150 − 08 (Reapproved 2016) D4150 − 19
Standard Terminology Relating to
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Gaseous Fuels
This standard is issued under the fixed designation D4150; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This standard defines the terms used in standards that are the responsiblityresponsibility of Committee D03 on Gaseous
Fuels. These terms are used in:
1.1.1 The sampling of gaseous fuels,
1.1.2 The analysis of gaseous fuels for composition and various other physical properties, and
1.1.3 Other practices related to the processing, transmission, and distribution of gaseous fuels.
1.2 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
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2.1 ASTM Standards:
D1142 Test Method for Water Vapor Content of Gaseous Fuels by Measurement of Dew-Point Temperature
D3588 Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels
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2.2 ISO Standard:Standards:
ISO NP 145327504 Natural Gas—TerminologyGas Analysis—Vocabulary
ISO 14687 Hydrogen Fuel Quality—Product Specification
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2.3 SAE Standard:
SAE J2719 Hydrogen Fuel Quality for Fuel Cell Vehicles
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2.4 GPA Standard:
GPA 2145 Table of Physical Properties for Hydrocarbons and Other Compounds of Interest to the Natural Gas and Natural Gas
Liquids Industries
3. Terminology
absolute pressure, n—pressure measured with reference to absolute zero pressure, usually expressed as kPa, mm Hg, bar, or psia.
acid gas—gas, n—natural gas containing high concentrations of hydrogen sulfide or carbon dioxide, or both, which is acidic when
in contact with water or water vapor.
associated gas—gas, n—natural gas, also known as gas-cap gas or dome gas, that overlies and is in immediate contact, but not
in solution, with crude oil in a reservoir.
at-line instrument—instrument, n—instrument requiring operator interaction to sample gas directly from the pipeline.
base conditions—conditions, n—temperature and pressure conditions at which natural gas volumes are determined for purposes
of custody transfer. In natural gas measurement the properties of interest are temperature, pressure, and composition. Assuming
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This terminology is under the jurisdiction of ASTM Committee D03 on Gaseous Fuels and is the direct responsibility of Subcommittee D03.92 on Terminology
Classification and Specifications.
Current edition approved July 1, 2016Dec. 15, 2019. Published August 2016January 2020. Originally approved in 1982. Last previous edition approved in 20082016 as
D4150 – 08.D4150 – 08(2016). DOI: 10.1520/D4150-08R16.10.1520/D4150-19.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.International Organization for
Standardization (ISO), ISO Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva, Switzerland, http://www.iso.org.
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Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096, http://www.sae.org.
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Available from Gas Processors Association (GPA), 66 American Plaza, Suite 700, Tulsa, OK 74135, http://www.gpaglobal.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4150 − 19
ideal gas properties, for simplicity, tables of pure compounds can be prepared for use in calculating gas properties for any
composition at “base conditions.” These “base conditions” are chosen near ambient.
DISCUSSION—
In natural gas measurements, the properties of interest are temperature, pressure, and composition. Assuming ideal gas properties, for simplicity, tables
of pure compounds can be prepared for use in calculating gas properties for any composition at “base conditions.” These “base conditions”
...