ASTM_D_7165_-_10_2015.pdf

Designation:D716510(Reapproved 2015)Standard Practice forGas Chromatograph Based On-line/At-line Analysis forSulfur Content of Gaseous Fuels1This standard is issued under the fixed designation D7165;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.Scope1.1This practice is for the determination of volatilesulfur-containing compounds in high methane content gaseousfuels such as natural gas using on-line/at-line instrumentation,and continuous fuel monitors(CFMS).It has been successfullyapplied to other types of gaseous samples including air,digester,landfill,and refinery fuel gas.The detection range forsulfur compounds,reported as picograms sulfur,based uponthe analysis of a 1 cc sample,is one hundred(100)to onemillion(1,000,000).This is equivalent to 0.1 to 1,000 mg/m3.1.2 This practice does not purport to measure all sulfurspecies in a sample.Only volatile compounds that are trans-ported to an instrument under the measurement conditionsselected are measured.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This practice does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this practice to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1072 Test Method for Total Sulfur in Fuel Gases byCombustion and Barium Chloride TitrationD1945 Test Method for Analysis of Natural Gas by GasChromatographyD3606 Test Method for Determination of Benzene andToluene in Finished Motor and Aviation Gasoline by GasChromatographyD3764 Practice for Validation of the Performance of ProcessStream Analyzer SystemsD4084 Test Method for Analysis of Hydrogen Sulfide inGaseous Fuels(Lead Acetate Reaction Rate Method)D4468 Test Method for Total Sulfur in Gaseous Fuels byHydrogenolysis and Rateometric ColorimetryD4626 Practice for Calculation of Gas ChromatographicResponse FactorsD4810 Test Method for Hydrogen Sulfide in Natural GasUsing Length-of-Stain Detector TubesD5504 Test Method for Determination of Sulfur Compoundsin Natural Gas and Gaseous Fuels by Gas Chromatogra-phy and ChemiluminescenceD6621 Practice for Performance Testing of Process Analyz-ers for Aromatic Hydrocarbon MaterialsD6122 Practice for Validation of the Performance of Multi-variate Online,At-Line,and Laboratory Infrared Spectro-photometer Based Analyzer SystemsD6228 Test Method for Determination of Sulfur Compoundsin Natural Gas and Gaseous Fuels by Gas Chromatogra-phy and Flame Photometric DetectionE594 Practice for Testing Flame Ionization Detectors Usedin Gas or Supercritical Fluid Chromatography2.2 ISO Standards3ISO 7504 Gas Analysis-Vocabulary3.Terminology3.1 Definitions:3.1.1 calibration gas mixture,na certified gas mixturewith known composition used for the calibration of a measur-ing instrument or for the validation of a measurement or gasanalytical method.3.1.1.1 DiscussionCalibration Gas Mixtures are the ana-logues of measurement standards in physical metrology(ref-erence ISO 7504 paragraph 4.1).3.1.2 direct samplingSampling where there is no directconnection between the medium to be sampled and theanalytical unit.1This practice is under the jurisdiction of ASTM Committee D03 on GaseousFuels and is the direct responsibility of Subcommittee D03.12 on On-Line/At-LineAnalysis of Gaseous Fuels.Current edition approved June 1,2015.Published July 2015 Originally approvedin 2006.Last previous edition approved in 2010 as D716510.DOI:10.1520/D7165-10R15.2For 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),1,ch.dela Voie-Creuse,Case postale 56,CH-1211,Geneva 20,Switzerland,http:/www.iso.ch.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.3 in-line instrumentInstrument whose active elementis installed in the pipeline and measures at pipeline conditions.3.1.4 on-line instrumentAutomated instrument thatsamples gas directly from the pipeline,but is installed exter-nally.3.1.5 at-line instrumentinstrument requiring operator in-teraction to sample gas directly from the pipeline.3.1.6 continuous fuel monitor(CFM)Instrument thatsamples gas directly from the pipeline on a continuous orsemi-continuous basis.3.1.7 total reduced sulfur(TRS)Summation of sulfur spe-cies where the sulfur oxidation number is 2,excluding sulfurdioxide,sulfones,and other inorganic sulfur compou