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ASTM D8080-21

(Specification)

Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle Fuel

Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle Fuel

SCOPE
1.1 This specification defines the minimum fuel quality requirements for gaseous fuels consisting primarily of methane when used as an internal combustion engine fuel.  
1.2 This specification defines the criteria for compressed natural gas (CNG), liquefied natural gas (LNG), or biogas when used as a fuel for internal combustion engines in motor vehicles.  
1.3 This specification covers the needs of internal combustion engines designed for use in motor vehicles.  
1.4 Fuels that have been enriched with hydrogen are outside the scope of this specification.  
1.5 This specification applies to the fuel as delivered into the on-board fuel tanks of a motor vehicle either as a compressed gas or cryogenic liquified gas.  
1.6 This specification may serve as a guide to gaseous fuel quality requirements for internal combustion engines used in stationary applications.  
1.7 This specification is not a natural gas pipeline standard; those requirements are determined by national and regional tariffs.  
1.8 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.9 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.10 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.

General Information

Status
Published
Publication Date
31-Mar-2021
ICS
75.160.20 - Liquid fuels
Technical Committee
D03 - Gaseous Fuels
Drafting Committee
D03.92 - Terminology and Editorial
Current Stage
Ref Project

Relations

Refers
ASTM D4150-19 - Standard Terminology Relating to Gaseous Fuels
Effective Date
15-Dec-2019
Refers
ASTM D8221-18a - Standard Practice for Determining the Calculated Methane Number (MN<inf>C</inf>) of Gaseous Fuels Used in Internal Combustion Engines
Effective Date
01-Dec-2018
Refers
ASTM D8221-18 - Standard Practice for Determining the Calculated Methane Number (MN<inf>C</inf>) of Gaseous Fuels Used in Internal Combustion Engines
Effective Date
01-Sep-2018
Refers
ASTM D4150-08(2016) - Standard Terminology Relating to Gaseous Fuels
Effective Date
01-Jul-2016
Refers
ASTM D7493-14 - Standard Test Method for Online Measurement of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatograph and Electrochemical Detection
Effective Date
01-Jun-2014
Refers
ASTM D7833-12 - Standard Test Method for Determination of Hydrocarbons and Non-Hydrocarbon Gases in Gaseous Mixtures by Gas Chromatography
Effective Date
01-Nov-2012
Refers
ASTM D4468-85(2011) - Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and<br> Rateometric Colorimetry
Effective Date
01-Nov-2011
Refers
ASTM D3588-98(2011) - Standard Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels
Effective Date
01-Nov-2011
Refers
ASTM D5454-11 - Standard Test Method for Water Vapor Content of Gaseous Fuels Using Electronic Moisture Analyzers
Effective Date
01-Jun-2011
Refers
ASTM D7607-11 - Standard Test Method for Analysis of Oxygen in Gaseous Fuels (Electrochemical Sensor Method)
Effective Date
01-Jun-2011
Refers
ASTM D5454-11e1 - Standard Test Method for Water Vapor Content of Gaseous Fuels Using Electronic Moisture Analyzers
Effective Date
01-Jun-2011
Refers
ASTM D6228-10 - Standard Test Method for Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and Flame Photometric Detection (Withdrawn 2019)
Effective Date
01-Dec-2010
Refers
ASTM D7651-10 - Standard Test Method for Gravimetric Measurement of Particulate Concentration of Hydrogen Fuel
Effective Date
01-Jul-2010
Refers
ASTM D7551-10 - Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases and Natural Gas by Ultraviolet Fluorescence
Effective Date
01-May-2010
Refers
ASTM D1945-03(2010) - Standard Test Method for Analysis of Natural Gas by Gas Chromatography
Effective Date
01-Jan-2010

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ASTM D8080-21 - Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle FuelASTM D8080-21 - Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle Fuel
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ASTM D8080-21 - Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle Fuel
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Standards Content (Sample)

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.
Designation:D8080 −21
Standard Specification for
Compressed Natural Gas (CNG) and Liquefied Natural Gas
1
(LNG) Used as a Motor Vehicle Fuel
This standard is issued under the fixed designation D8080; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This specification defines the minimum fuel quality
requirements for gaseous fuels consisting primarily of methane
2. Referenced Documents
when used as an internal combustion engine fuel.
2
2.1 ASTM Standards:
1.2 This specification defines the criteria for compressed
D1142 Test Method for Water Vapor Content of Gaseous
natural gas (CNG), liquefied natural gas (LNG), or biogas
Fuels by Measurement of Dew-Point Temperature
when used as a fuel for internal combustion engines in motor
D1945 Test Method for Analysis of Natural Gas by Gas
vehicles.
Chromatography
D3588 Practice for Calculating Heat Value, Compressibility
1.3 This specification covers the needs of internal combus-
tion engines designed for use in motor vehicles. Factor, and Relative Density of Gaseous Fuels
D4150 Terminology Relating to Gaseous Fuels
1.4 Fuels that have been enriched with hydrogen are outside
D4468 Test Method for Total Sulfur in Gaseous Fuels by
the scope of this specification.
Hydrogenolysis and Rateometric Colorimetry
1.5 This specification applies to the fuel as delivered into
D5454 Test Method for Water Vapor Content of Gaseous
the on-board fuel tanks of a motor vehicle either as a
Fuels Using Electronic Moisture Analyzers
compressed gas or cryogenic liquified gas.
D5504 TestMethodforDeterminationofSulfurCompounds
in Natural Gas and Gaseous Fuels by Gas Chromatogra-
1.6 This specification may serve as a guide to gaseous fuel
phy and Chemiluminescence
quality requirements for internal combustion engines used in
D6228 TestMethodforDeterminationofSulfurCompounds
stationary applications.
in Natural Gas and Gaseous Fuels by Gas Chromatogra-
1.7 This specification is not a natural gas pipeline standard;
phy and Flame Photometric Detection
those requirements are determined by national and regional
D6968 Test Method for Simultaneous Measurement of Sul-
tariffs.
fur Compounds and Minor Hydrocarbons in Natural Gas
1.8 Units—The values stated in SI units are to be regarded and Gaseous Fuels by Gas Chromatography and Atomic
as standard. The values given in parentheses after SI units are Emission Detection
provided for information only and are not considered standard. D7165 Practice for Gas Chromatograph Based On-line/At-
line Analysis for Sulfur Content of Gaseous Fuels
1.9 This standard does not purport to address all of the
D7493 Test Method for Online Measurement of Sulfur
safety concerns, if any, associated with its use. It is the
Compounds in Natural Gas and Gaseous Fuels by Gas
responsibility of the user of this standard to establish appro-
Chromatograph and Electrochemical Detection
priate safety, health, and environmental practices and deter-
D7551 Test Method for Determination of Total Volatile
mine the applicability of regulatory limitations prior to use.
Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum
1.10 This international standard was developed in accor-
Gases and Natural Gas by Ultraviolet Fluorescence
dance with internationally recognized principles on standard-
D7607 Test Method for Analysis of Oxygen in Gaseous
ization established in the Decision on Principles for the
Fuels (Electrochemical Sensor Method)
Development of International Standards, Guides and Recom-
D7651 Test Method for Gravimetric Measurement of Par-
ticulate Concentration of Hydrogen Fuel
1
This specification is under the jurisdiction of ASTM Committee D03 on
2
Gaseous Fuels and is the direct responsibility of Subcommittee D03.92 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Terminology Classification and Specifications. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved April 1, 2021. Published May 2021. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
D8080-21. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8080−21
D7833 Test Method for Determination of Hydrocarbons and 4.5 Sample Siz
...

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4.1 The analysis of trace elements is often a regulatory and process-specific requirement for facilities utilizing LHWF. With proper instrument standardization, set-up, and quality control, this test method provides the user an accurate, rapid, nondestructive method for trace element determinations.
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Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

SIGNIFICANCE AND USE
5.1 Motor O.N. correlates with commercial automotive spark-ignition engine antiknock performance under severe conditions of operation.  
5.2 Motor O.N. is used by engine manufacturers, petroleum refiners and marketers, and in commerce as a primary specification measurement related to the matching of fuels and engines.  
5.2.1 Empirical correlations that permit calculation of automotive antiknock performance are based on the general equation:
Values of k1, k2, and k3 vary with vehicles and vehicle populations and are based on road-octane number determinations.  
5.2.2 Motor O.N., in conjunction with Research O.N., defines the antiknock index of automotive spark-ignition engine fuels, in accordance with Specification D4814. The antiknock index of a fuel approximates the road octane ratings for many vehicles, is posted on retail dispensing pumps in the United States, and is referred to in vehicle manuals.
This is more commonly presented as:
5.3 Motor O.N. is used for measuring the antiknock performance of spark-ignition engine fuels that contain oxygenates.  
5.4 Motor O.N. is important in relation to the specifications for spark-ignition engine fuels used in stationary and other nonautomotive engine applications.  
5.5 Motor O.N. is utilized to determine, by correlation equation, the Aviation method O.N. or performance number (lean-mixture aviation rating) of aviation spark-ignition engine fuel.7
SCOPE
1.1 This laboratory test method covers the quantitative determination of the knock rating of liquid spark-ignition engine fuel in terms of Motor octane number, including fuels that contain up to 25 % v/v of ethanol. However, this test method may not be applicable to fuel and fuel components that are primarily oxygenates.2 The sample fuel is tested in a standardized single cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine run in accordance with a defined set of operating conditions. The octane number scale is defined by the volumetric composition of primary reference fuel blends. The sample fuel knock intensity is compared to that of one or more primary reference fuel blends. The octane number of the primary reference fuel blend that matches the knock intensity of the sample fuel establishes the Motor octane number.  
1.2 The octane number scale covers the range from 0 to 120 octane number, but this test method has a working range from 40 to 120 octane number. Typical commercial fuels produced for automotive spark-ignition engines rate in the 80 to 90 Motor octane number range. Typical commercial fuels produced for aviation spark-ignition engines rate in the 98 to 102 Motor octane number range. Testing of gasoline blend stocks or other process stream materials can produce ratings at various levels throughout the Motor octane number range.  
1.3 The values of operating conditions are stated in SI units and are considered standard. The values in parentheses are the historical inch-pounds units. The standardized CFR engine measurements continue to be in inch-pound units only because of the extensive and expensive tooling that has been created for this equipment.  
1.4 For purposes of determining conformance with all specified limits in this standard, an observed value or a calculated value shall be rounded “to the nearest unit” in the last right-hand digit used in expressing the specified limit, in accordance with the rounding method of Practice E29.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For more specific hazard statements, see Section 8, 14.4.1, 15.5.1, 16.6.1, Annex A1, A2.2.3.1, A2.2.3.3(6) and (9), A2.3.5, X3.3.7, X4.2.3.1, X4.3.4.1, X4.3.9.3, X4.3.12.4, and X4.5.1.8. ...

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5.1 The test results are indicative of fuel performance during gas turbine operation and can be used to assess the level of deposits that form when liquid fuel contacts a heated surface that is at a specified temperature.
SCOPE
1.1 This test method covers the procedure for rating the tendencies of gas turbine fuels to deposit decomposition products within the fuel system.  
1.2 The differential pressure values in mm Hg are defined only in terms of this test method.  
1.3 The deposition values stated in SI units shall be regarded as the referee value.  
1.4 The pressure values stated in SI units are to be regarded as standard. The psi comparison is included for operational safety with certain older instruments that cannot report pressure in SI units.  
1.5 No other units of measurement are included in this standard.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 6.1.1, 7.1, 7.3, 12.1.1, and Annex A6.  
1.7 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.

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ASTM
ASTM D7901-23(Specification)
Standard Specification for Dimethyl Ether for Fuel Purposes

ABSTRACT
This specification covers dimethyl ether (DME) for use as a fuel in engines specifically designed or modified for DME and for blending with liquefied petroleum gas. It is intended for use by DME manufacturers, purpose-built engine developers, in contracts for the purchase of DME for fuel purposes, and for the guidance of consumers of this type of fuel. This specification includes chemical composition and other requirements, sampling, and test methods.
SCOPE
1.1 This specification covers dimethyl ether (DME) for use as a fuel in engines specifically designed or modified for DME and for blending with liquefied petroleum gas (LPG). This specification is for use by manufacturers of dimethyl ether, by engine developers of purpose-built engines, in contracts for the purchase of DME for fuel purposes, and for the guidance of consumers of this type of fuel.
Note 1: The generation and dissipation of static electricity can create problems in the handling of DME. For more information on the subject, see Guide D4865.  
1.2 The values stated in SI units are to be regarded as standard. Units in parentheses are for information only.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

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