ISO4548-12-2017内燃机全流式机油滤清器试验方法 第12部分：滤清效率（颗粒计数法）和

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1、INTERNATIONALISOSTANDARD4548-12Secondedition2017-05Methodsoftestforfull-flowlubricatingoilfiltersforinternalcombustionengines—Part12:FiltrationefficiencyusingparticlecountingandcontaminantretentioncapacityMéthodesd’essaidesfiltresàhuiledelubrificatio

2、nàpleindébitpourlesmoteursàcombustioninterne—Partie12:EfficacitédefiltrationparcomptagedesparticulesetcapacitéderétentiondescontaminantsReferencenumberISO4548-12:2017(E)©ISO2017ISO4548-12:2017(E)COPYRIGHTPROTECTEDDOCUMENT©ISO2017,PublishedinSwitzerla

3、ndAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.Permissioncanber

4、equestedfromeitherISOattheaddressbeloworISO’smemberbodyinthecountryoftherequester.ISOcopyrightofficeCh.deBlandonnet8•CP401CH-1214Vernier,Geneva,SwitzerlandTel.+41227490111Fax+41227490947copyright@iso.orgwww.iso.orgii©ISO2017–AllrightsreservedISO4548-

5、12:2017(E)ContentsPageForeword............................................................................................................................................................................................................................

6、............ivIntroduction................................................................................................................................................................................................................................

7、..v1Scope.................................................................................................................................................................................................................................12Normativerefer

8、ences......................................................................................................................................................................................13Termsanddefinitions..........................................