ASTM_D_8080_-_21.pdf

Designation:D808021Standard Specification forCompressed Natural Gas(CNG)and Liquefied Natural Gas(LNG)Used as a Motor Vehicle Fuel1This standard is issued under the fixed designation D8080;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification defines the minimum fuel qualityrequirements for gaseous fuels consisting primarily of methanewhen used as an internal combustion engine fuel.1.2 This specification defines the criteria for compressednatural gas(CNG),liquefied natural gas(LNG),or biogaswhen used as a fuel for internal combustion engines in motorvehicles.1.3 This specification covers the needs of internal combus-tion engines designed for use in motor vehicles.1.4 Fuels that have been enriched with hydrogen are outsidethe scope of this specification.1.5 This specification applies to the fuel as delivered intothe on-board fuel tanks of a motor vehicle either as acompressed gas or cryogenic liquified gas.1.6 This specification may serve as a guide to gaseous fuelquality requirements for internal combustion engines used instationary applications.1.7 This specification is not a natural gas pipeline standard;those requirements are determined by national and regionaltariffs.1.8 UnitsThe values stated in SI units are to be regardedas standard.The values given in parentheses after SI units areprovided for information only and are not considered standard.1.9 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.10 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1142 Test Method for Water Vapor Content of GaseousFuels by Measurement of Dew-Point TemperatureD1945 Test Method for Analysis of Natural Gas by GasChromatographyD3588 Practice for Calculating Heat Value,CompressibilityFactor,and Relative Density of Gaseous FuelsD4150 Terminology Relating to Gaseous FuelsD4468 Test Method for Total Sulfur in Gaseous Fuels byHydrogenolysis and Rateometric ColorimetryD5454 Test Method for Water Vapor Content of GaseousFuels Using Electronic Moisture AnalyzersD5504 Test Method for Determination of Sulfur Compoundsin Natural Gas and Gaseous Fuels by Gas Chromatogra-phy and ChemiluminescenceD6228 Test Method for Determination of Sulfur Compoundsin Natural Gas and Gaseous Fuels by Gas Chromatogra-phy and Flame Photometric DetectionD6968 Test Method for Simultaneous Measurement of Sul-fur Compounds and Minor Hydrocarbons in Natural Gasand Gaseous Fuels by Gas Chromatography and AtomicEmission DetectionD7165 Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous FuelsD7493 Test Method for Online Measurement of SulfurCompounds in Natural Gas and Gaseous Fuels by GasChromatograph and Electrochemical DetectionD7551 Test Method for Determination of Total VolatileSulfur in Gaseous Hydrocarbons and Liquefied PetroleumGases and Natural Gas by Ultraviolet FluorescenceD7607 Test Method for Analysis of Oxygen in GaseousFuels(Electrochemical Sensor Method)D7651 Test Method for Gravimetric Measurement of Par-ticulate Concentration of Hydrogen Fuel1This specification is under the jurisdiction of ASTM Committee D03 onGaseous Fuels and is the direct responsibility of Subcommittee D03.92 onTerminology Classification and Specifications.Current edition approved April 1,2021.Published May 2021.DOI:10.1520/D8080-21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1D7833 Test Method for Determination of Hydrocarbons andNon-Hydrocarbon Gases in Gaseous Mixtures by GasChromatographyD7904 Test Method for Determination of Water Vapor(Moisture Concentration)in Natural Gas by TunableDiode Laser Spectroscopy(TDLAS)D8221 Pr