1、Designation:D811121a1Standard Test Method forEvaluation of Automotive Engine Oils in the Sequence IIIH,Spark-Ignition Engine1This standard is issued under the fixed designation D8111;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,th
2、e 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.1NOTEEditorially updated TMC governance information in June 2022.INTRODUCTIONPortions of this test method are written for us
3、e by laboratories that make use of ASTM TestMonitoring Center(TMC)2services(see Annex A1).The TMC provides reference oils,and engineering and statistical services to laboratories that desireto produce test results that are statistically similar to those produced by laboratories previouslycalibrated
4、by the TMC.In general,the test purchaser decides if a calibrated test stand is to be used.Organizations such astheAmerican Chemistry Council require that a laboratory utilize the TMC services as part of their testregistration process.In addition,the American Petroleum Institute and the Gear Lubrican
5、t ReviewCommittee of the Lubricant Review Institute(SAE International)require that a laboratory use theTMC services in seeking qualification of oils against their specifications.The advantage of using the TMC services to calibrate test stands is that the test laboratory(andhence the test purchaser)h
6、as an assurance that the test stand was operating at the proper level of testseverity.It should also be borne in mind that results obtained in a non-calibrated test stand may notbe the same as those obtained in a test stand participating in the ASTM TMC services process.ASTM International policy is
7、to encourage the development of test procedures based on genericequipment.It is recognized that there are occasions where critical/sole-source equipment has beenapproved by the technical committee(surveillance panel/task force)and is required by the testprocedure.The technical committee that oversee
8、s the test procedure is encouraged to clearly identifyif the part is considered critical in the test procedure.If a part is deemed to be critical,ASTMencourages alternative suppliers to be given the opportunity for consideration of supplying the criticalpart/component providing they meet the approva
9、l process set forth by the technical committee.An alternative supplier can start the process by initiating contact with the technical committee(current chairs shown on ASTM TMC website).The supplier should advise on the details of the partthat is intended to be supplied.The technical committee will
10、review the request and determinefeasibility of an alternative supplier for the requested replacement critical part.In the event that areplacement critical part has been identified and proven equivalent the sole-source supplier footnoteshall be removed from the test procedure.1.Scope*1.1 This test me
11、thod covers an engine test procedure forevaluating automotive engine oils for certain high-temperatureperformance characteristics,including oil thickening(as mea-sured by kinematic viscosity increase),piston deposits,ringsticking,oil consumption,and phosphorus retention.Such oilsinclude both single-
12、viscosity and multiviscosity grade oils thatare used in both spark-ignition,gasoline-fueled engines,aswell as in diesel engines.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.B0 on
13、 Automotive Lubricants.Current edition approved July 1,2021.Published July 2021.Originally approvedin 2017.Last previous edition approved in 2021 as D8111 21.DOI:10.1520/D8111-21AE01.2Until the next revision of this test method,the ASTM Test Monitoring Centerwill update changes in the test method by
14、 means of information letters.Informationletters may be obtained from the ASTM Test Monitoring Center,203 ArmstrongDrive,Freeport,PA 16229,Attention:Director.This edition incorporates revisionsin all information letters through No.21-1.*A Summary of Changes section appears at the end of this standar
15、dCopyright 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 Internati
16、onal Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.11.1.1 Additionally,with nonmandatory supplementalrequirements,a Sequence IIIHATest(Mini Rotary Viscometerand Cold Cranking Simulator measurements),or a SequenceIIIHB Test(phosphorus retention measurement)can be con-ducted.These supplemental test procedures are contained inAppendix X1 and Appendix X2,respectively.NOTE1Companion test methods used to evaluate engine oil perfor
