ASTM_D_4150_-_21b.pdf

Designation:D415021bStandard Terminology Relating toGaseous Fuels1This standard is issued under the fixed designation D4150;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 terminology standard covers the compilation ofterminology developed by Committee D03 on Gaseous Fuels.It does not include terms,definitions,abbreviations,acronyms,and symbols specific to only a single D03 standard in whichthey appear.These terms,definitions,abbreviations,acronyms,and symbols are used in:1.1.1 The sampling of gaseous fuels,1.1.2 The analysis of gaseous fuels for composition andvarious other physical properties,and1.1.3 Other practices related to the processing,transmission,and distribution of gaseous fuels.1.2 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 TemperatureD1835 Specification for Liquefied Petroleum(LP)GasesD3588 Practice for Calculating Heat Value,CompressibilityFactor,and Relative Density of Gaseous FuelsD4175 Terminology Relating to Petroleum Products,LiquidFuels,and Lubricants2.2 ISO Standards:3ISO 7504 Gas AnalysisVocabularyISO 14687 Hydrogen Fuel QualityProduct Specification2.3 SAE Standard:4SAE J2719 Hydrogen Fuel Quality for Fuel Cell Vehicles2.4 GPA Standards:5GPA 2145 Table of Physical Properties for Hydrocarbonsand Other Compounds of Interest to the Natural Gas andNatural Gas Liquids IndustriesGPA Midstream 2140 Liquefied Petroleum Gas Specifica-tions and Test Methods3.Terminology3.1 Definitions:absolute pressure,nthe pressure relative to an idealvacuum.DISCUSSIONThe absolute pressure can be expressed in kPa,mm Hg,bar,psia,etc.,as defined by the application.DISCUSSIONAn ideal vacuum is the best vacuum available using theapplication.acid gas,nnatural gas containing high concentrations ofhydrogen sulfide or carbon dioxide,or both,which is acidicwhen in contact with water or water vapor.associated gas,nnatural gas,also known as gas-cap gas ordome gas,that overlies and is in immediate contact,but notin solution,with crude oil in a reservoir.at-line instrument,ninstrument requiring operator interac-tion to sample gas directly from the pipeline.automotive LPG(special duty propane,HD-5 propane),na product composed chiefly of propane specificallydeveloped for use as fuel in spark-ignition internal combus-tion engines.DISCUSSIONProducts such as special duty propane from Specifica-tion D1835 or HD-5 propane from specification GPA Midstream 2140were designed for automotive applications.base conditions,ntemperature and pressure conditions atwhich natural gas volumes are determined for purposes ofcustody transfer.DISCUSSIONIn natural gas measurements,the properties of interestare temperature,pressure,and composition.Assuming ideal gas1This terminology 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 Nov.1,2021.Published November 2021.Originallyapproved in 1982.Last previous edition approved in 2021 as D4150 21a.DOI:10.1520/D4150-21B.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.3Available from International Organization for Standardization(ISO),ISOCentral Secretariat,BIBC II,Chemin de Blandonnet 8,CP 401,1214 Vernier,Geneva,Switzerland,http:/www.iso.org.4Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096,http:/www.sae.org.5Available from Gas Processors Association(GPA),66 American Plaza,Suite700,Tulsa,OK 74135,http:/www.gpaglobal.org.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.1properties,for simplicity,tables of pure compounds can be prepared foruse in calculating gas properties for any composition at“base condi-tions.”These“base conditions”are chosen near ambient.biogas,nthe gaseous product of the microbial decompositionof organic matter.DISCU