ASTM_D_7900_-_18e1.pdf

Designation:D7900181Designation:601Standard Test Method forDetermination of Light Hydrocarbons in Stabilized CrudeOils by Gas Chromatography1,2This standard is issued under the fixed designation D7900;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.1NOTESubsection 1.1 was revised editorially in November 2018.1.Scope*1.1 This test method specifies a method to determine theboiling range distribution of hydrocarbons in stabilized crudeoil up to and including n-nonane.A stabilized crude oil isdefined as having a Reid Vapor Pressure equivalent to or lessthan 82.7 kPa.The results of this test method can be combinedwith those from Test Method D7169 and IP 545 to give a fullboiling point distribution of a crude oil(see Appendix X3).1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are provided forinformation purposes only.1.3 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.1.4 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:3D323 Test Method for Vapor Pressure of Petroleum Products(Reid Method)D4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD5134 Test Method for Detailed Analysis of PetroleumNaphthas through n-Nonane by Capillary Gas Chroma-tographyD6729 Test Method for Determination of Individual Com-ponents in Spark Ignition Engine Fuels by 100 MetreCapillary High Resolution Gas ChromatographyD6730 Test Method for Determination of Individual Com-ponents in Spark Ignition Engine Fuels by 100MetreCapillary(with Precolumn)High-Resolution Gas Chro-matographyD6733 Test Method for Determination of Individual Com-ponents in Spark Ignition Engine Fuels by 50-MetreCapillary High Resolution Gas ChromatographyD7169 Test Method for Boiling Point Distribution ofSamples with Residues Such as Crude Oils and Atmo-spheric and Vacuum Residues by High Temperature GasChromatographyE355 Practice for Gas Chromatography Terms and Relation-ships2.2 Energy Institute Standards:4IP 545 Crude Petroleum and Petroleum ProductsDetermination of Boiling Range Distribution of Crude OilIP 475 Manual SamplingIP 476 Automatic Pipeline Sampling2.3 ISO Standard:5ISO 4259 Petroleum ProductsDetermination and Applica-tion of Precision Data in Relation to Methods of Test1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.04.0L on Gas Chromatography Methods.Current edition approved Oct.1,2018.Published October 2018.Originallyapproved in 2013.Last previous edition approved in 2017 as D7900 17.DOI:10.1520/D7900-18E01.2This standard has been developed through the cooperative effort betweenASTM and the Energy Institute,London.The IP and ASTM logos imply that theASTM and IP standards are technically equivalent,but their use does not imply thatboth standards are editorially identical.3For 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.4Information on Energy Institute Standards can be obtained from the EnergyInstitute at www.energyinst.org.5Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*A Summary of Changes section appears at the end of this standardCopyright 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.1 3.Terminology3.1 DefinitionsThis test method makes reference to manycommon gas chromatographic procedures,terms,and relation-ships.Detailed definitions can be found in Practice E355.4.Summary of Test Method4.1 An amount of internal standard is quantitatively addedto an aliquot of the stabilized crude oil.A portion o