Designation:C1409−12StandardGuideforMeasuringandEstimatingQuantitiesofInsulatedPipingandComponents1ThisstandardisissuedunderthefixeddesignationC1409;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONAcommitteeofASTMInternationalinitiatedthisguidetoimproveindustry-wideunderstandingofthecomponentsinaninsulatedpipingsystemthataffecttheinstalledcostofinsulatingthesystem.ThemethodofmeasurementstandardusedasabiasforthisguideistheNationalCommercialandIndustrialStandards.2ASTMInternationaldefinesaguideasaseriesofoptionsorinstructionsthatdoesnotrecommendaspecificcourseofaction.Aguideonlysuggestsacourseofaction.Itspurposeistoofferguidancebasedonaconsensusofviewpoints,butnottoestablishafixedprocedure.Aguideisintendedtoincreasetheawarenessoftheusertoavailabletechniquesinagivensubjectareaandtoprovideinformationfromwhichsubsequentevaluationandstandardizationcanbederived.ItistheintentionthatthisguidewillhelpgainwideracceptanceandunderstandingoftheconceptsintheMICAstandard.1.Scope1.1Thisguidedefinesthecomponentsofaninsulatedpipingsystemtobemeasuredorcountedtodeterminequan-titiesandpricingforunitpricecontractsorextrawork.1.2Pricingmaybedonethroughunitpricingforeachitembypipesize,typeofinsulationsystem,insulationthickness,doubleormultilayerinsulation,typeofweatherproofingorjacketing,andpressurerating(ifnecessary)orthroughcom-ponent(fitting)factorormultipliers.1.2.1Component(fitting)factorsormultipliers,whicharemultiplierstimesthestraightlengthofpipingasshowninTable1,determinerelativepricesforeachcomponentnotwithinthescopeofthisguide.Thesefactorsormultipliersaretobedeterminedbytheinsulatingcontractorrelativetothegivensituationandinsulationsystemspecification.1.2.2Itissuggestedthatonlyonetypeofpricingbeusedonaproject.1.2.3Thevaluesstatedininch-poundunitsaretoberegard...
