1、Designation:D754921Standard Test Method forEvaluation of Heavy-Duty Engine Oils under High OutputConditionsCaterpillar C13 Test Procedure1This standard is issued under the fixed designation D7549;the number immediately following the designation indicates the year oforiginal adoption or,in the case o
2、f 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.INTRODUCTIONAny properly equipped laboratory,without outside assistance,can use the test procedure describedin
3、this test method.The ASTM Test Monitoring Center(TMC)2provides calibration and anassessment of the test results obtained on those oils by the laboratory.By this means the laboratorywill know whether its use of the test method gives results statistically similar to those obtained byother laboratories
4、.Furthermore,various agencies require that a laboratory utilizes the TMC servicesin seeking qualification of oils against specifications.For example,the U.S.Army has such arequirement in some of its engine oil specifications.Accordingly,this test method is written for thoselaboratories that use the
5、TMC services.Laboratories that choose not to use these services shouldignore those portions of the test method that refer to the TMC.Information letters2issued periodicallyby the TMC may modify this test method.In addition the TMC may issue supplementary memorandarelated to the test method.ASTM Inte
6、rnational policy is 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 co
7、mmittee that oversees 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 t
8、hey meet the approval 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 techn
9、ical committee will 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.Sc
10、ope*1.1 The test method covers a heavy-duty engine test proce-dure under high output conditions to evaluate engine oilperformance with regard to piston deposit formation,pistonring sticking and oil consumption control in a combustionenvironment designed to minimize exhaust emissions.This testmethod
11、is commonly referred to as the Caterpillar C13Heavy-Duty Engine Oil Test.31.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.2.1 ExceptionsWhere there are no SI equivalent such asscrew threads,National Pipe Treads(NPT),and tub
12、ing sizes.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 Automotive Lubricants.Current edition approved April 1,2021.Published April 2021.Originallypublished in 2009.Last pre
13、vious edition approved in 2019 as D7549 19.DOI:10.1520/D7549-21.2The ASTM Test Monitoring Center will update changes in this test method bymeans of Information Letters.This edition includes all information letters throughNo.20-1.Information Letters may be obtained by from the ASTM Test MonitoringCen
14、ter,6555 Penn Avenue,Pittsburgh,PA 15206-4489,Attention:Administrator.3Caterpillar Inc.,Engine System Technology Development,PO Box 610,Mossville,IL 61552-0610.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshoh
15、ocken,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 Organiza
16、tion Technical Barriers to Trade(TBT)Committee.11.3 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 prior to use.See Annex A1 for general safety precautions.1.4 This international standard was developed in accor-dance with internationally recognized principles on stand
