Designation:D1265−11(Reapproved2017)´1StandardPracticeforSamplingLiquefiedPetroleum(LP)Gases,ManualMethod1ThisstandardisissuedunderthefixeddesignationD1265;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—SIunitsformattingwascorrectededitoriallyinJuly2017.1.Scope1.1ThispracticecoversequipmentandproceduresforobtainingarepresentativesampleofspecificationLiquefiedPetroleumGas(LPG),suchasspecifiedinSpecificationD1835,GPA2140,andcomparableinternationalstandards.1.2ThispracticeissuitableforobtainingrepresentativesamplesforallroutinetestsforLPgasesrequiredbySpecifi-cationD1835.IntheeventofadisputeinvolvingsampleintegritywhensamplingfortestingagainstSpecificationD1835requirements,PracticeD3700shallbeusedastherefereesamplingprocedure.1.3ThispracticemayalsobeusedforotherNaturalGasLiquid(NGL)productsthatarenormallysinglephase(NGLmix,fieldbutane,etc.),definedinotherindustryspecificationsorcontractualagreements.Itisnotintendedfornon-specificationproductsthatcontainsignificantquantitiesofundissolvedgases(N2,CO2),freewaterorotherseparatedphases,suchasraworunprocessedgas/liquidsmixturesandrelatedmaterials.Thesameequipmentcanbeusedforthesepurposes,butadditionalprecautionsaregenerallyneededtoobtainrepresentativesamplesofmultiphaseproducts(seeAppendixX1onSamplingGuidelinesinPracticeD3700).NOTE1—PracticeD3700describesarecommendedpracticeforobtain-ingarepresentativesampleofalighthydrocarbonfluidandthesubse-quentpreparationofthatsampleforlaboratoryanalysiswhendissolvedgasesarepresent.UseofPracticeD1265willresultinasmallbutpredictablelowbiasfordissolvedgasesduetotheliquidventingproceduretoestablishthe20%minimumullage.1.4Thispracticeincludesrecommendationsforthelocationofasamplepointinalineorvessel.Itistheresponsibilityoftheusertoensurethatthesamplingpointislocatedsoasto...
