Designation:D2962−10(Reapproved2019)StandardPracticeforCalculatingVolume-TemperatureCorrectionForCoal-TarPitches1ThisstandardisissuedunderthefixeddesignationD2962;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverscalculationoftheamountofexpan-sionorcontractionofavolumeofliquidcoal-tarpitchduetoachangeoftemperature.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D70TestMethodforDensityofSemi-SolidAsphaltBinder(PycnometerMethod)D71TestMethodforRelativeDensityofSolidPitchandAsphalt(DisplacementMethod)3.SummaryofPractice3.1Differentpitchesexpandorcontractatdifferentrateswhichvaryinrelationtotherelativedensityofthematerial.ThecorrespondingvaluesarelistedinTable1.4.SignificanceandUse4.1Coaltarpitchisshippedorstored,orboth,atvarioustemperatures,consequentlyameansisrequiredtocorrectvolumetoaspecifiedtemperature.5.Procedure5.1Determinetherelativedensityofthepitchat60°F⁄60°F(15.6°C⁄15.6°C)inaccordancewithTestMeth-odsD70orD71,whicheverismostsuitable.5.2FindthecoefficientofexpansionperdegreeCelsiusorFahrenheitfortheparticularmaterialf...
