1、Designation:D754822Standard Test Method forDetermination of Accelerated Iron Corrosion in PetroleumProducts1This standard is issued under the fixed designation D7548;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last re
2、vision.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 test method covers an accelerated laboratory andfield procedure for the determination of corrosion of iron,inthe presence of
3、 water,on samples such as gasoline and gasolineblended with 10%ethanol,E10(Specification D4814);gasoline-blend components(except butane);diesel fuel andbiodiesel B5,except Grade No.4-D(Specification D975);biodiesel B6 to B20(Specification D7467);diesel-blend com-ponent such as light cycle-oil;No.1 f
4、uel oil,No.2 fuel oil(Specification D396);aviation turbine fuel(SpecificationD1655).1.2 The values stated in SI units are to be regarded as thestandard.1.2.1 ExceptionValues in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns,if any,associat
5、ed 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.1.4 This international standard was developed in accor-dance with internationally recognize
6、d 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:2A108 Specification for Steel
7、Bar,Carbon and Alloy,Cold-FinishedD97 Test Method for Pour Point of Petroleum ProductsD396 Specification for Fuel OilsD665 Test Method for Rust-Preventing Characteristics ofInhibited Mineral Oil in the Presence of WaterD975 Specification for Diesel FuelD1193 Specification for Reagent WaterD1655 Spec
8、ification for Aviation Turbine FuelsD4175 Terminology Relating to Petroleum Products,LiquidFuels,and LubricantsD4814 Specification for Automotive Spark-Ignition EngineFuelD7467 Specification for Diesel Fuel Oil,Biodiesel Blend(B6 to B20)G15 Terminology Relating to Corrosion and Corrosion Test-ing(Wi
9、thdrawn 2010)32.2 Other Standards:British Standard BS9701:070M204or European SteelC22E Number 1.1151Carbon and Carbon ManganeseSteels including Free Cutting Steels3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this test method,referto Terminology D4175.3.1.2 corrosion,nchemical
10、or electrochemical reactionbetween a material,usually a metal,and its environment thatproduces a deterioration of the material and its properties.G153.1.3 rust,ncorrosion product consisting primarily ofhydrated iron oxide.3.1.3.1 DiscussionRust is a term properly applied only toferrous alloys.G153.2
11、 Acronyms:3.2.1 TPtemperature probe.4.Summary of Test Method4.1 Apolished iron corrosion test-rod is immersed in 50 mLof the sample being tested and heated to 37.8 C(100 F),at1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the
12、 direct responsibility ofSubcommittee D02.14 on Stability,Cleanliness and Compatibility of Liquid Fuels.Current edition approved May 1,2022.Published May 2022.Originallyapproved in 2009.Last previous edition approved in 2022 as D7548 16a(2022)1.DOI:10.1520/D7548-222For referenced ASTM standards,visi
13、t 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Annual Book of I
14、P Standard Methods for Analysis and Testing of Petroleum andRelated Products,Vol 2.Available from Energy Institute,61 New Cavendish St.,London,W1G 7AR,U.K.,http:/www.energyinst.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO
15、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
16、 World Trade Organization Technical Barriers to Trade(TBT)Committee.1which point 5 mL of reagent water,Type III or better,is addedto the sample.Sample temperature is maintained between37 C to 39 C(98 F to 102 F),with the target being 37.8 C(100 F),for 1 h.At the end of the heating period,test-rod isremoved,rinsed,and examined for the degree/category ofcorrosion against the“ASTM Iron Corrosion Rating Chart-Test Method D7548.”5.Significance and Use5.1 In general,wherever the possibility exists of
