iso4548-12-2017內(nèi)燃機全流式機油濾清器試驗方法 第12部分：濾清效率（顆粒計數(shù)法）和

1、?ISO2017Methodsoftestffullflowlubricatingoilfiltersfinternalcombustionengines—Part12:FiltrationefficiencyusingparticlecountingcontaminantretentioncapacityMthodesd’essaidesfiltreshuiledelubrificationpleindbitpourlesmoteur

2、scombustioninterne—Partie12:EfficacitdefiltrationparcomptagedesparticulesetcapacitdertentiondescontaminantsINTERNATIONALSTARDISO454812Secondedition201705ReferencenumberISO454812:2017(E)ISO454812:2017(E)Fewd..............

3、..........................................................................................................................................................................................................................iv

4、Introduction................................................................................................................................................................................................................

5、..................v1Scope...................................................................................................................................................................................................

6、..............................12Nmativereferences...........................................................................................................................................................................

7、...........13Termsdefinitions.....................................................................................................................................................................................14Symbols.

8、.........................................................................................................................................................................................................................25T

9、estequipmentmaterials...............................................................................................................................................................25.1Testequipment.......................

10、................................................................................................................................................................25.1.1Testrig...............................................

11、.......................................................................................................................................25.1.2Onlinedilutionparticlecountingsystem...........................................

12、..............................................45.1.3Timer...................................................................................................................................................................

13、.......................55.2Testmaterials....................................................................................................................................................................................

14、.......55.2.1Testcontaminant.............................................................................................................................................................55.2.2Testfluid....................

15、..............................................................................................................................................................56Accuracyofmeasuringinstrumentstestconditions................

16、...........................................................................57Testrigvalidation..............................................................................................................................

17、..................................................................67.1Validationoffiltertestcircuit.........................................................................................................................

18、............................67.2Validationofcontaminantinjectioncircuit....................................................................................................................67.3Validationofonlinedilutionpar

19、ticlecountingsystem.............................................................................78Preliminarypreparation....................................................................................................

20、..........................................................................78.1Testfilterassembly............................................................................................................................

21、.................................................78.2Contaminantinjectioncircuit............................................................................................................................................

22、.........78.3Filtertestcircuit.....................................................................................................................................................................................99Testpro

23、cedure........................................................................................................................................................................................................99.1Initialmea

24、surement...........................................................................................................................................................................99.2Perfmancetest........................

25、........................................................................................................................................................1110Calculationsreptoftestresults...................................

26、.....................................................................................................1210.1Calculations.....................................................................................................

27、........................................................................................1210.1.1General.....................................................................................................................

28、..............................................................1210.1.2Gravimetriclevels.....................................................................................................................................

29、...................1210.1.3Filtrationefficiencies.................................................................................................................................................1310.1.4Micrometerratings.

30、....................................................................................................................................................1310.1.5Injectedmassofcontaminant.......................................

31、.....................................................................................1410.1.6Nonretainedmassofcontaminant...................................................................................................

32、...........1410.1.7Retainedfiltercapacity...........................................................................................................................................1410.2Testrept..........................

33、......................................................................................................................................................................14AnnexA(nmative)Specificationoftestfluidfoilfiltertes

34、t.........................................................................................15AnnexB(infmative)Typicalfiltertestrept..........................................................................................

35、..........................................16AnnexC(nmative)Filterefficiencycalculations............................................................................................................................22AnnexD(

36、infmative)Roundrobinexercise...........................................................................................................................................25Bibliography.......................................

37、......................................................................................................................................................................................32?ISO2017–AllrightsreservediiiContent