ASTM_D_5623_-_19.pdf

Designation:D562319Standard Test Method forSulfur Compounds in Light Petroleum Liquids by GasChromatography and Sulfur Selective Detection1This standard is issued under the fixed designation D5623;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.Scope*1.1 This test method covers the determination of volatilesulfur-containing compounds in light petroleum liquids.Thistest method is applicable to distillates,gasoline motor fuels(including those containing oxygenates)and other petroleumliquids with a final boiling point of approximately 230 C(450 F)or lower at atmospheric pressure.The applicableconcentration range will vary to some extent depending on thenature of the sample and the instrumentation used;however,inmost cases,the test method is applicable to the determinationof individual sulfur species at levels of 0.1 mg kg to100 mgkg.1.2 The test method does not purport to identify all indi-vidual sulfur components.Detector response to sulfur is linearand essentially equimolar for all sulfur compounds within thescope(1.1)of this test method;thus both unidentified andknown individual compounds are determined.However,manysulfur compounds,for example,hydrogen sulfide andmercaptans,are reactive and their concentration in samplesmay change during sampling and analysis.Coincidently,thetotal sulfur content of samples is estimated from the sum of theindividual compounds determined;however,this test method isnot the preferred method for determination of total sulfur.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.1.4 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.1.5 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:2D2622 Test Method for Sulfur in Petroleum Products byWavelength Dispersive X-ray Fluorescence SpectrometryD3120 Test Method for Trace Quantities of Sulfur in LightLiquid Petroleum Hydrocarbons by Oxidative Microcou-lometryD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4307 Practice for Preparation of Liquid Blends for Use asAnalytical StandardsD4626 Practice for Calculation of Gas ChromatographicResponse FactorsD5504 Test Method for Determination of Sulfur Compoundsin Natural Gas and Gaseous Fuels by Gas Chromatogra-phy and Chemiluminescence2.2 Other Standard:GPA 2199 Determination of Specific Sulfur Compounds byCapillary Gas Chromatography and Sulfur Chemilumines-cence Detection3.Summary of Test Method3.1 The sample is analyzed by gas chromatography with anappropriate sulfur selective detector.Calibration is achieved bythe use of an appropriate internal or external standard.Allsulfur compounds are assumed to produce equivalent responseas sulfur.3.2 Sulfur Detection As sulfur compounds elute from thegas chromatographic column they are quantified by a sulfurselective detector that produces a linear and equimolar re-sponse to sulfur compounds;for example,a sulfur chemilumi-nescence detector or atomic emission detector used in thesulfur channel.1This 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 July 1,2019.Published August 2019.Originallyapproved in 1994.Last previous edition approved in 2014 as D5623 94(2014).DOI:10.1520/D5623-19.2For 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.*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 4.Significance and Use4.1 Gas chromatography with sulfur selective