ASTM D4150-23

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D4150 − 23
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.
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1. Scope 2.3 SAE Standard:
SAE J2719 Hydrogen Fuel Quality for Fuel Cell Vehicles
1.1 This terminology standard covers the compilation of
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2.4 GPA Standards:
terminology developed by Committee D03 on Gaseous Fuels.
GPA 2145 Table of Physical Properties for Hydrocarbons
It does not include terms, definitions, abbreviations, acronyms,
and Other Compounds of Interest to the Natural Gas and
and symbols specific to only a single D03 standard in which
Natural Gas Liquids Industries
they appear. These terms, definitions, abbreviations, acronyms,
GPA Midstream 2140 Liquefied Petroleum Gas Specifica-
and symbols are used in:
tions and Test Methods
1.1.1 The sampling of gaseous fuels,
1.1.2 The analysis of gaseous fuels for composition and
3. Terminology
various other physical properties, and
3.1 Definitions:
1.1.3 Other practices related to the processing, transmission,
absolute pressure, n—the pressure relative to an ideal
and distribution of gaseous fuels.
vacuum.
1.2 This international standard was developed in accor-
DISCUSSION—The absolute pressure can be expressed in kPa, mm Hg,
dance with internationally recognized principles on standard-
bar, psia, etc., as defined by the application.
ization established in the Decision on Principles for the
DISCUSSION—An ideal vacuum is the best vacuum available using the
Development of International Standards, Guides and Recom-
application.
mendations issued by the World Trade Organization Technical
acid gas, n—natural gas containing high concentrations of
Barriers to Trade (TBT) Committee.
hydrogen sulfide or carbon dioxide, or both, which is acidic
2. Referenced Documents
when in contact with water or water vapor.
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2.1 ASTM Standards:
associated gas, n—natural gas, also known as gas-cap gas or
D1142 Test Method for Water Vapor Content of Gaseous
dome gas, that overlies and is in immediate contact, but not
Fuels by Measurement of Dew-Point Temperature
in solution, with crude oil in a reservoir.
D1835 Specification for Liquefied Petroleum (LP) Gases
at-line instrument, n—instrument requiring operator interac-
D3588 Practice for Calculating Heat Value, Compressibility
tion to sample gas directly from the pipeline.
Factor, and Relative Density of Gaseous Fuels
D4175 Terminology Relating to Petroleum Products, Liquid
automotive LPG (special duty propane, HD-5 propane),
Fuels, and Lubricants
n—a product composed chiefly of propane specifically
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2.2 ISO Standards:
developed for use as fuel in spark-ignition internal combus-
ISO 7504 Gas Analysis—Vocabulary
tion engines.
ISO 14687 Hydrogen Fuel Quality—Product Specification
DISCUSSION—Products such as special duty propane from Specifica-
tion D1835 or HD-5 propane from specification GPA Midstream 2140
were designed for automotive applications.
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This terminology is under the jurisdiction of ASTM Committee D03 on
base conditions, n—temperature and pressure conditions at
Gaseous Fuels and is the direct responsibility of Subcommittee D03.92 on
which natural gas volumes are determined for purposes of
Terminology Classification and Specifications.
Current edition approved May 1, 2023. Published May 2023. Originally custody transfer.
approved in 1982. Last previous edition approved in 2021 as D4150 – 21b. DOI:
DISCUSSION—In natural gas measurements, the properties of interest
10.1520/D4150-23.
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are temperature, pressure, and composition. Assuming ideal gas
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
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the ASTM website. Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale,
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Available from International Organization for Standardization (ISO), ISO PA 15096, http://www.sae.org.
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Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Available from Gas Processors Association (GPA), 66 American Plaza, Suite
Geneva, Switzerland, http://www.iso.org. 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 − 23
properties, for simplicity, tables of pure compounds can be prepared for
contaminant, n—an impurity that could cause reversible or
use in calculating ga
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