Designation:D484-71AmericanNationalStandardZ11.42-1952(R1972)AmericanNationalStandardsInstituteMethod5203—FederalTestMethodStandardNo.791b(DoctorTest.Section4.2.6ofD484)StandardSpecificationforHYDROCARBONDRYCLEANINGSOLVENTSThisStandardisissuedunderthefixeddesignationD484;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor.inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.1.Scope1.1Thisspecificationcoversfourtypesofhydrocarbonsolvents,normallypetroleumdistillates,oflowflammabilityusedindrycleaningoftextilematerials.2.Classification2.1Hydrocarbondrycleaningsolventsshallbeofthefollowingtypes,asspecified:TypeI—StoddardSolventTypeII—140FsolventTypeIII—OdorlessSolventTypeIV—LowDryPointSolvent3.PhysicalandChemicalRequirements3.1ThephysicalandchemicalpropertiesofthehydrocarbondrycleaningsolventsshallconformtotherequirementsspecifiedinTable1.4.MethodsofTest4.1Thematerialshallbesampledinac-cordancewithASTMMethodD270,Sam-plingPetroleumandPetroleumProducts.24.2Thepropertiesenumeratedinthisspec-ificationshallbedeterminedinaccordancewiththefollowingASTMMethodsofTest:4.2.1FlashPoint—MethodD56,TestforFlashPointbyTagClosedTester.34.2.2Distillation—MethodD86,TestforDistillationofPetroleumProducts.34.2.3Kauri-ButanolValue—MethodD1133,TestforKauri-ButanolValueofHydro-carbonSolvents.44.2.4Color—MethodD156,TestforSay-boltColorofPetroleumProducts(SayboltChromometerMethod).34.2.5Acidity—MethodD1093,TestforAcidityofDistillationResiduesorHydro-carbonLiquids.34.2.6DoctorTest:4.2.6.1PreparationofDoctor(SodiumPlumbite)Solution—Dissolveapproximately125gofsodiumhydroxide(NaOH)in1literofdistilledwater.Add60gofleadoxide(PbO)andshakevigorouslyfor15min,orletstandwithoccasionalshakingsforatleastaday.Allowtosettle,anddecantorsiphonofftheclearliquid.Filtrationthroughamatofasbestosmaybeemployedifthesolutiondoesnotsettleclear.Thesolutionshouldbekeptinatightlycorkedbottle,andshouldberefil-teredbeforeuseifnotperfectlyclea...
