1、Designation:D430620An American National StandardStandard Practice forAviation Fuel Sample Containers for Tests Affected by TraceContamination1This standard is issued under the fixed designation D4306;the number immediately following the designation indicates the year oforiginal adoption or,in the ca
2、se 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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This pract
3、ice2covers the types of and preparation ofcontainers found most suitable for the handling of aviation fuelsamples for the determination of critical properties affected bytrace contamination.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in
4、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,health,and environmental practices and deter-mine the applicability of regulatory limitations prio
5、r to use.For specific warning statements,see 5.1,5.2,5.3,5.4,and 5.6.1.4 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-me
6、ndations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D2624 Test Methods for Electrical Conductivity of Aviationand Distillate FuelsD3948 Test Method for Determining Water Separation Char-acteristics ofAviation Turbine Fuel
7、s by Portable Separom-eterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4308 Test Method for Electrical Conductivity of LiquidHydrocarbons by Precision MeterD5452 Test Method for Particulate Contamination in Avia-tion Fuels by Laboratory Filtration2.2 SAE Standard:4MAP1794 Ai
8、rcraft Recommended Practice,Ball-On-Cylinder(Boc)Aircraft Turbine Fuel Lubricity Tester3.Significance and Use3.1 General descriptions for the manual sampling of petro-leum products are given in Practice D4057.However,anumber of aviation fuel properties are established or affectedby trace levels of p
9、olar or other compounds.Measurementsignificance therefore requires that the sample containers notadd or adsorb any materials.This practice presents types andpreparations of sampling containers found satisfactory for thedetermination of water separation,copper corrosion,electricalconductivity,thermal
10、 stability,lubricity,and trace metal con-tent.The choice of construction materials is an importantfactor,particularly in the case of aviation turbine fuel,wherethermal stability can be degraded by the presence of very lowconcentrations of copper.The use of copper or copper basedalloys shall be elimi
11、nated from aviation sampling apparatus.An approval procedure for new containers is also given.3.2 Two properties,particulate contamination and free watercontent,involve materials easily removed by any samplingcontainer.These properties should be determined by placingthe sample directly into the meas
12、uring apparatus and not usingcontainers to transport the sample to the measuring equipment.3.3 Recommendations in this practice provide guidance forimmediate use and for storage of samples.Immediate useinvolves sample storage for periods less than 24 h.4.Apparatus4.1 Sampling Containers:4.1.1 Epoxy-
13、Coated Containers:1This practice is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.J0.04 on Additives and Electrical Properties.Current edition approved May 1,2020.Published June 2020.Originallyappro
14、ved in 1984.Last previous edition approved 2015 as D4306 15.DOI:10.1520/D4306-20.2The detailed data on which this practice is based may be found in SAE PracticeMAP1794 and three research reports.Supporting data have been filed at ASTMInternational Headquarters and may be obtained by requesting Resea
15、rch ReportsRR:D02-1169,RR:D02-1142,and RR:D02-1504.3For 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.4Available from
16、 Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.org.*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 Recommend