ASTM_D_8302_-_20.pdf

Designation:D830220Standard Test Method forDetermination of Cycloparaffin Content in Saturated ATJ-SPK Jet Fuel Gas Chromatography1This standard is issued under the fixed designation D8302;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 test method covers the determination of cyclopar-affin content by gas chromatography of the saturated ATJ-SPKjet fuel as specified in Specification D7566,section A5.4.1,derived from isobutanol and follows the fuel fingerprintdescribed in the Annex of this test method.1.2 The working range for the test method is for cyclopar-affin content in the range of 1%to 15%by mass.1.3 The test method has an interim precision and will beupdated once an extended ILS is conducted.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:2D2425 Test Method for Hydrocarbon Types in Middle Dis-tillates by Mass SpectrometryD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD6300 Practice for Determination of Precision and BiasData for Use in Test Methods for Petroleum Products,Liquid Fuels,and LubricantsD7566 Specification for Aviation Turbine Fuel ContainingSynthesized HydrocarbonsD7372 Guide for Analysis and Interpretation of ProficiencyTest Program ResultsE355 Practice for Gas Chromatography Terms and Relation-shipsE594 Practice for Testing Flame Ionization Detectors Usedin Gas or Supercritical Fluid Chromatography3.Terminology3.1 This test method references common gas chromato-graphic procedures,terms,and relationships which may befound in Practices E355 and E594.3.2 Definitions:3.2.1 paraffns,nsaturated,non-cyclic hydrocarbons.3.3 Abbreviations:3.3.1 ATJ-SPKalcohol-to-jet synthetic paraffinic kerosene3.3.2 ASTMAmerican Society for Testing and Materials3.3.3 FIDflame ionization detector3.3.4 GC/MSgas chromatograph mass spectrometer3.3.5 IPCidentified paraffin concentration3.3.6 m/zmolecular mass to charge ratio of an ion3.3.7 PTPproficiency testing programs3.3.8 QCquality control4.Summary of Test Method4.1 A representative aliquot of ATJ-SPK jet fuel is intro-duced into a gas chromatograph equipped with a 5%phenyl-methylpolysiloxane bonded phase capillary column.Carriergas transports the vaporized aliquot through the column wherethe components are separated by the chromatographic process.Components are sensed by a flame ionization detector as theyelute from the column in boiling point order.The detectorsignal is processed by an electronic data acquisition system.The paraffins are identified by comparing their retention timesto the ones reported in the method.Identification of theparaffins has been previously performed by analyzing referencesamples and standards by mass spectrometry under conditionsas indicated in the Annex.The concentrations of all compo-nents are determined in mass percent area by normalization of1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.04 on Hydrocarbon Analysis.Current edition approved July 1,2020.Published July 2020.DOI:10.1520/D8302-20.2For 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.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.the peak areas.The cycloparaffin content is determined as100%percent paraffins.5.Significance and Use5.1 This test method applies specifically to the ATJ-SPK jetfuel as specified in Specification D7566,section A5.4.1,derived from isobutanol and follows the fuel fingerprintdescribed in the annex of this test method.It may not apply toother