2023年全國碩士研究生考試考研英語一試題真題（含答案詳解+作文范文）_第1頁
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1、Designation:C564?14EndsedbytheCastIronSoilPipeInstituteStardSpecificationfRubberGasketsfCastIronSoilPipeFittings1ThisstardisissuedunderthefixeddesignationC564thenumberimmediatelyfollowingthedesignationindicatestheyearofi

2、ginaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.Thisstardhasbeenapprovedfusebyagenciesofthe

3、U.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversprefmedrubbergasketsusedtosealjointsincastironsoilpipefittings.1.2Thecommitteewithjurisdictionoverthisstardisnotawareofanothercomparablestardfmaterialscoveredinthi

4、sstard.1.3Thevaluesstatedininchpoundunitsaretoberegardedasstard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedfinfmationonlyarenotconsideredstard.1.4Thefollowingsafetyhazardscaveatpertainso

5、nlytothetestmethodssectionofthisspecification:Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminethe

6、applicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2A644TerminologyRelatingtoIronCastingsC1277SpecificationfShieldedCouplingsJoiningHublessCastIronSoilPipeFittingsD395TestMethodsfRubberProperty

7、—CompressionSetD412TestMethodsfVulcanizedRubberThermoplasticElastomers—TensionD471TestMethodfRubberProperty—EffectofLiquidsD573TestMethodfRubber—DeteriationinanAirOvenD624TestMethodfTearStrengthofConventionalVulcanizedRu

8、bberThermoplasticElastomersD1149TestMethodsfRubberDeteriation—CrackinginanOzoneControlledEnvironmentD1415TestMethodfRubberProperty—InternationalHardnessD2240TestMethodfRubberProperty—DurometerHardnessD3677TestMethodsfRub

9、ber—IdentificationbyInfraredSpectrophotometry2.2OtherDocumentsRMAClass3DimensionalTolerancesRMAManual3CISPI310Specificationfcouplingsfuseinconnectionwithhublesscastironsoilpipefittingsfsanitarystmdrainwasteventpipingappl

10、ications43.Terminology3.1Definitions—FdefinitionsoftermsinthisstardseeTerminologyA644.3.2DefinitionsofTermsSpecifictoThisStard:3.2.1flashn—theexcessmaterialprotrudingfromthesurfaceofamoldedarticleatthemoldjunction.3.2.2m

11、anufacturern—theentitythatmoldsthegasketscoveredbythisstard.3.2.3virginrubbern—atermthatmaybeusedinterchangeablywithrawrubber(rawthermosetelastomer).Arubberthermosetelastomerthathasnothadanyadditionalwkdiluentsincpatedpr

12、ocessesperfmedonitanycombinationthereof.Arubberthatisinanunmodifiedstateoneinwhichnoattempthasbeenmadetoalteritinanyfashionasreceivedfromthemanufacturersupplier.4.MaterialsManufacture4.1Gasketsshallbemadeofaproperlyvulca

13、nizedvirgincompoundcontainingvirginrubberasthesoleelastomerwithnoscrapreclaim.4.2GasketsmanufacturedfuseincouplingscomplyingwithSpecificationC1277CISPI310shallbemanufacturedfromaproperlyvulcanizedvirgincompoundinwhichthe

14、1ThisspecificationisunderthejurisdictionofASTMCommitteeA04onIronCastingsisthedirectresponsibilityofSubcommitteeA04.75onGasketsCouplingfPlumbingSewerPiping.CurrenteditionapprovedMay12014.PublishedMay2014.iginallyapprovedi

15、n1965.Lastpreviouseditionapprovedin2012asC564–12.DOI:10.1520C056414.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypa

16、geontheASTMwebsite.3AvailablefromAssociationfRubberProductsManufacturers(ARPM)7321ShadelStationWaySuite285IndianapolisIN46256:www.arpminc.g.4AvailablefromCastIronSoilPipeInstitute(CISPI):www.cispi.g.Copyright?ASTMInterna

17、tional100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates1withthespecimenlayinginaconcavemanner.Measurethethicknessofeachplyaddthemeasuredthicknessofeachply(nottoexceedsevenplies)todeterminetheiginalpliedup

18、thickness(to).Theplieduptargetthicknessshouldbeapproximately.50in.Taketheiginalpliedupthickness(to)multiplyitby.75todeterminethethicknessofthespacerbartobeused(tn).Assemblethepliedupspecimensinthetestfixture(TestMethodsD

19、395Fig.3)withtheproperthicknessspacerbarsplaceinovenf22hat1582F(701C).AttheendofthetestperiodtakethedevicefromtheovenremovethetestspecimensimmediatelyallowtocoolinaccdancewithTestMethodsD395section13.4.Afterthecoolingper

20、iodmeasurethefinalthicknessatthecenteroftheplieduptestspecimenplacedinaconcavepositiononthedialmicrometertodeterminethefinalthickness(ti).Calculatethecompressionsetexpressedasapercentageoftheiginaldeflectionasfollows:CB5

21、@~to2ti!?~to2tn!#3100CB=compressionsetvaluetestmethodBto=iginalpliedupthicknessti=finalpliedupthicknesstn=thicknessofspacerbarused9.5HeatAging—Thegasketmaterialshallbetestedfeffectsofheataginginaccdancewith9.2shallbeaged

22、f96hat15862F(7061C).Hardnessmeasurementsshallbemadeasspecifiedin9.1.Testshallbeperfmedannuallywhenafmulationchangehasoccurredasourceofsupplyhaschangedwhicheveristheshterperiod.9.6WaterAbsption—Thegasketmaterialshallbetes

23、tedfweightincreaseduetowaterabsptioninaccdancewithTestMethodD471.Ifa1in.(25.4mm)specimencannotbecutfromthesamplegasketthegreatestwidthobtainableshallbeused.Thetestspecimenshallbeimmersedindistilledwaterat15862F(7061C)f7d

24、ays.Testshallbeperfmedannuallywhenafmulationchangehasoccurredasourceofsupplyhaschangedwhicheveristheshterperiod.9.7OzoneResistance—ThegasketmaterialshallbetestedfozoneresistanceinaccdancewithTestMethodD1149usingspecimens

25、procedurespecifiedunderMethodB.Theozoneconcentrationshallbe150parts100000000ofairbyvolume.Specimensshallbeaged10061hat10462F(4061C).Atwopowerhmagnifyingglassshallbeusedtoexaminethegasketfcracks.Testshallbeperfmedannually

26、whenafmulationchangehasoccurredasourceofsupplyhaschangedwhicheveristheshterperiod.9.7.1Whentestinggasketsusedinhublesspipecouplingstheozoneconcentrationshallbe100100000000(1PPM)ofairbyvolume.9.8OilImmersion—Thegasketmate

27、rialshallbetestedfvolumedecreaseduetooilabsptioninaccdancewithTestMethodD471.Ifa1in.(25.4mm)specimencannotbecutfromthesamplegasketthegreatestwidthobtainableshallbeused.ThetestspecimenshallbeimmersedinIRM903f7060.7hat2126

28、2F(10061C).Testshallbeperfmedannuallywhenafmulationchangehasoccurredasourceofsupplyhaschangedwhicheveristheshterperiod.10.Certification10.1Uponrequestthepurchaserdesignprofessionaltheadministrativeauthityhavingjurisdicti

29、onwheretheproductsarebeinginstalledshallbefurnishedcertificationbythemanufacturerstatingsamplesrepresentingeachlothavebeentestedinspectedasindicatedinthisspecificationtherequirementshavebeenmet.Ifrequestedbythepurchaserd

30、esignprofessionaltheadministrativeauthityhavingjurisdictionwheretheproductsarebeinginstalledcertificationshallbeaccompaniedbytestreptsaspreparedinaccdancewiththeSections4–9ofthisspecification.Certificationshallincludethe

31、legalnameaddressofthemanufacturer.10.2ThirdPartycertifiersinspectsshallutilizetheproceduresdetailedinAnnexA1whenconductinginspectionsatthemanufacturinglocations.11.Marking11.1Markeachgasketwithclearlylegiblelettersnotexc

32、eeding1?4in.(6.35mm)inheight.Thesemarkingsshallincludethegasketmanufacturer’snamesymbolthepipesizeclass(suchasNHfnohubSVfserviceXHfextraheavy)countryofigintheASTMspecificationdesignation.RubberCompressiongasketsshallbere

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