ASTM_D_7164_-_10_2015.pdf

Designation:D716410(Reapproved 2015)Standard Practice forOn-line/At-line Heating Value Determination of GaseousFuels by Gas Chromatography1This standard is issued under the fixed designation D7164;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 practice is for the determination of heating value inhigh methane content gaseous fuels such as natural gas usingan on-line/at-line gas chromatograph.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1070 Test Methods for Relative Density of Gaseous FuelsD1945 Test Method for Analysis of Natural Gas by GasChromatographyD1946 Practice for Analysis of Reformed Gas by GasChromatographyD3588 Practice for Calculating Heat Value,CompressibilityFactor,and Relative Density of Gaseous FuelsD3764 Practice for Validation of the Performance of ProcessStream Analyzer SystemsD4626 Practice for Calculation of Gas ChromatographicResponse FactorsD5287 Practice for Automatic Sampling of Gaseous FuelsD5503 Practice for Natural Gas Sample-Handling and Con-ditioning Systems for Pipeline InstrumentationD6122 Practice for Validation of the Performance of Multi-variate Online,At-Line,and Laboratory Infrared Spectro-photometer Based Analyzer SystemsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD6621 Practice for Performance Testing of Process Analyz-ers for Aromatic Hydrocarbon MaterialsE260 Practice for Packed Column Gas ChromatographyE594 Practice for Testing Flame Ionization Detectors Usedin Gas or Supercritical Fluid ChromatographyE1510 Practice for Installing Fused Silica Open TubularCapillary Columns in Gas Chromatographs2.2 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.3.1.3 in-line instrumentinstrument with an active elementinstalled in a pipeline,which is used to measure pipelinecontents or conditions.3.1.4 on-line instrumentinstrument that samples gas di-rectly from a pipeline,but is installed externally.3.1.5 at-line instrumentinstrumentation requiring operatorinteraction that samples gas directly from the pipeline.3.1.6 continuous fuel monitorinstrument that samples gasdirectly from the pipeline on a continuous or semi-continuousbasis.3.1.7 heating valuein general terms,the heating value isthe total energy per volume transferred as heat from the1This 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 Nov.1,2015.Published December 2015.Originallyapproved in 2005.Last previous edition approved in 2010 as D716410.DOI:10.1520/D7164-15.2For 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 complete,ideal combustion of the gas at a specified tempera-ture and pressure.The heating value can be reported on a netor gross basis for a gaseous stream that is assumed to be fullywater vapor saturated.3.1.8 gross heating value(also called higher heatingvalue)the amount of energy per volume transferred as heatfrom the complete,ideal combustion of the gas at standardtemperature in which all the water formed by the reactioncondenses to liquid.3.1.9 net heating value(also called lower heating value)the amount of energy per volume transferred as heat from thecomplete,ideal combustion of the gas at standard temperaturein which all the water formed by the reaction remains in thevapor state.3.2 reference gas m