ASTM D4057-2006 石油和石油产品的手工取样用标准实施规程

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【英文标准名称】:StandardPracticeforManualSamplingofPetroleumandPetroleumProducts
【原文标准名称】:石油和石油产品的手工取样用标准实施规程
【标准号】:ASTMD4057-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.02.0B
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:润滑剂;手工的;石油;石油产品;工艺;取样方法
【英文主题词】:boringsampling;bottle/beakersampling;corethiefspotsampling;dippersampling;extendedtubesampling;grabsampling;greasesampling;marinecustodytransfer;samplecontainers;samplehandling;samplelabeling;samplemixing;sampleshipment;sampl
【摘要】:Representativesamplesofpetroleumandpetroleumproductsarerequiredforthedeterminationofchemicalandphysicalproperties,whichareusedtoestablishstandardvolumes,prices,andcompliancewithcommercialandregulatoryspecifications.Thefollowingconceptsmustbeconsideredwhenselectingaspecificsamplingprocedure.5.2.1ObjectiveofManualSampling:5.2.1.1Theobjectiveofmanualsamplingistoobtainasmallportion(spotsample)ofmaterialfromaselectedareawithinacontainerthatisrepresentativeofthematerialintheareaor,inthecaseofrunningorall-levelsamples,asamplewhosecompositionisrepresentativeofthetotalmaterialinthecontainer.Aseriesofspotsamplesmaybecombinedtocreatearepresentativesample.5.2.2RequiredConditionsfortheApplicationofManualSampling:5.2.2.1Manualsamplingmaybeappliedunderallconditionswithinthescopeofthispractice,providedthatthepropersamplingproceduresarefollowed.5.2.2.2Inmanyliquidmanualsamplingapplications,thematerialtobesampledcontainsaheavycomponent(suchasfreewater)whichtendstoseparatefromthemaincomponent.Inthesecases,manualsamplingisappropriateunderthefollowingconditions.(1)Sufficienttimemusthaveelapsedfortheheavycomponenttoadequatelyseparateandsettle.(2)Itmustbepossibletomeasurethelevelofthesettledcomponentinordertostaywellabovethatlevelwhendrawingrepresentativesamples,unlessallorpartoftheheavycomponentwillbeincludedintheportionofthetankcontentstobeidentified.(3)Whenoneormoreoftheseconditionscannotbemet,samplingisrecommendedandisaccomplishedbymeansofanautomaticsamplingsystem(seePracticeD4177(APIMPMSChapter8.2)).1.1Thispracticecoversproceduresformanuallyobtainingrepresentativesamplesofpetroleumproductsofaliquid,semi-liquid,orsolidstatewhosevaporpressureatambientconditionsisbelow101kPa(14.7psia).Ifsamplingisfortheprecisedeterminationofvolatility,usePracticeD5842(APIMPMSChapter8.4)inconjunctionwiththispractice.Forsamplemixingandhandlingofsamples,refertoPracticeD5854(APIMPMSChapter8.3).Thepracticedoesnotcoversamplingofelectricalinsulatingoilsandhydraulicfluids.AsummaryofthemanualsamplingproceduresandtheirapplicationsispresentedinTable1.Note1-Theproceduresdescribedinthispracticemayalsobeapplicableinsamplingmostnoncorrosiveliquidindustrialchemicals,providedthatallsafetyprecautionsspecifictothesechemicalsarestrictlyfollowed.Note2-TheprocedureforsamplingliquefiedpetroleumgasesisdescribedinPracticeD1265;theprocedureforsamplingfluidpowerhydraulicfluidsiscoveredinANSIB93.19andB93.44;theprocedureforsamplinginsulatingoilsisdescribedinPracticeD923;andtheprocedureforsamplingnaturalgasisdescribedinTestMethodD1145.Note3TheprocedureforspecialfuelsamplesfortracemetalanalysisisdescribedinanappendixtoSpecificationD2880.
【中国标准分类号】:E30
【国际标准分类号】:75_080;75_100
【页数】:18P.;A4
【正文语种】:


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【英文标准名称】:StandardTestMethodsforWaterVaporTransmissionofShippingContainers-ConstantandCycleMethods
【原文标准名称】:用固定法和周期法对航运集装箱的水蒸气的透过性的标准试验方法
【标准号】:ASTMD4279-1995(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D10.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:constantrateofgain;cyclemethod;desiccant;reclosablecontainers;watervaporpermeability;Constant/cyclemethods;Linerboard;Reclosablecontainers;Shippingcontainers/materials/applications;Watervaportransmission(WVT)
【摘要】:Thesetestmethodsarenormallyusedforthefollowingpurposes:Toevaluatematerialsandconstructionsforaspecifictypeofcontainer,Tocompareperformanceofdifferenttypesofcontainers,Todetermineadequacyofprotectionforaspecificproductorapplication,andTomaintainqualitycontrol.1.1Thesetestmethodscoverthedeterminationofwatervaportransmissionratesforbulkshippingcontainers,asfollows:1.1.1MethodA,forReclosableContainers,and1.1.2MethodB,forContainersNotDesignedforReclosing.1.2Withineachproceduredetailsaregivenfortheconstantandcyclemethodsoftestatmosphere.1.3Thetestmaybeappliedtothecontaineraspacked,orafteroneormoreperformancetestssuchasdrum(MethodD782),vibration(MethodsD999),drop(TestMethodD5276),impactresistance(TestMethodsD880,D4003,andD5277),orperformancetests(PracticeD4169),asrequired.1.4Forsmallshippingcontainersrequiringgreateraccuracyinweighing,thewatervaportransmissionmaybedeterminedinaccordancewithTestMethodD895orTestMethodD1251.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A85
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语


基本信息
标准名称:SN10系列户内高压少油断路器粉末冶金整体弧触指及触头技术条件
中标分类: 电工 >> 输变电设备 >> 高压开关设备
发布日期:
实施日期:1992-10-01
首发日期:
作废日期:
出版日期:
页数:10页
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所属分类: 电工 输变电设备 高压开关设备