ASTM_D_7826_-_21.pdf

Designation:D782621An American National StandardStandard Guide forEvaluation of New Aviation Gasolines and New AviationGasoline Additives1This standard is issued under the fixed designation D7826;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 guide provides procedures to develop data for usein research reports for new aviation gasolines or new aviationgasoline additives.1.2 This data is intended to be used by the ASTM subcom-mittee to make a determination of the suitability of the fuel foruse as an aviation fuel in either a fleet-wide or limited capacity,and to make a determination that the proposed properties andcriteria in the associated standard specification provide thenecessary controls to ensure this fuel maintains this suitabilityduring high-volume production.1.3 These research reports are intended to support thedevelopment and issuance of new specifications or specifica-tion revisions for these products.Guidance to develop ASTMInternational standard specifications for aviation gasoline isprovided in Subcommittee J on Aviation Fuels OperatingProcedures,Annex A6,“Guidelines for the Development andAcceptance of a New Aviation Fuel Specification for Spark-Ignition Reciprocating Engines.”1.4 The procedures,tests,selection of materials,engines,and aircraft detailed in this guide are based on industryexpertise to give appropriate data for review.Because of thediversity of aviation hardware and potential variation infuel/additive formulations,not every aspect may be encom-passed and further work may be required.Therefore,additionaldata beyond that described in this guide may be requested bythe ASTM task force,Subcommittee J,or Committee D02upon review of the specific composition,performance,or othercharacteristics of the candidate fuel or additive.1.5 While it is beyond the scope of this guide,investigationof the future health and environmental impacts of the newaviation gasoline or new aviation gasoline additive and therequirements of environmental agencies is recommended.1.6 The values stated in SI units are to be regarded asstandard.1.6.1 ExceptionSome industry standard methodologiesutilize imperial units as their primary system(permeability;Table A2.2).1.7 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.1.8 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:2D86 Test Method for Distillation of Petroleum Products andLiquid Fuels at Atmospheric PressureD97 Test Method for Pour Point of Petroleum ProductsD130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD156 Test Method for Saybolt Color of Petroleum Products(Saybolt Chromometer Method)D323 Test Method for Vapor Pressure of Petroleum Products(Reid Method)D381 Test Method for Gum Content in Fuels by Jet Evapo-rationD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D471 Test Method for Rubber PropertyEffect of LiquidsD664 Test Method for Acid Number of Petroleum Productsby Potentiometric Titration1This guide is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.J0.02 on Aviation Piston Engine Fuels.Current edition approved Dec.1,2021.Published January 2022.Originallyapproved in 2013.Last previous edition approved in 2020 as D7826 20a.DOI:10.1520/D7826-21.2For 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 t