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DB62/T 1315-2008 陇两腊肉

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基本信息
标准名称:陇两腊肉
替代情况:替代DB62/T 1315-2005
发布部门:甘肃省质量技术临督局
发布日期:2008-08-01
实施日期:2008-08-25
首发日期:
作废日期:
主管部门:甘肃省质量技术临督局
出版社:中国标准出版社
出版日期:2008-08-25
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所属分类: 综合 标准化管理与一般规定 标准化 质量管理 社会学 服务 公司(企业)的组织和管理 行政 运输 质量 质量管理和质量保证
【英文标准名称】:CreepandCreep-FatigueCrackGrowthatStructuralDiscontinuitiesandWelds
【原文标准名称】:焊接和结构性间断中的疲劳蠕变裂纹扩展和蠕变
【标准号】:ASMESTP-NU-039-2012
【标准状态】:现行
【国别】:美国
【发布日期】:2012
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:裂缝;蠕变;蠕变性能;疲劳;耐久试验;反应堆工艺学;反应堆;钢;焊接接头;焊缝
【英文主题词】:Crack;Creep;Creepbehaviour;Fatigue;Fatiguetests;Reactortechnology;Reactors;Steels;Weldedjoints;Welds
【摘要】:
【中国标准分类号】:F69
【国际标准分类号】:27_120_10
【页数】:82P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMeltFlowRatesofThermoplasticsbyExtrusionPlastometer
【原文标准名称】:用挤压式塑性计测定热塑塑料的熔体流动速率的标准试验方法
【标准号】:ASTMD1238-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:meltflowrate;meltindex;volumeflowrate;Acrylonitrile-butadiene-styrene(ABS);Extrusionplastometer;Flowandflowrate--thermoplastics;Fluoropolymers;Polycarbonate(PC);Polymers;Thermoplastics
【摘要】:Thistestmethodisparticularlyusefulforqualitycontroltestsonthermoplastics.Thedataproducedbythistestmethodservestoindicatetheuniformityoftheflowrateofthepolymerasmadebyanindividualprocess.Itisnottobeusedasanindicationofuniformityofotherpropertieswithoutvalidcorrelationwithdatafromothertests.Theflowrateobtainedwiththeextrusionplastometerisnotafundamentalpolymerproperty.Itisanempiricallydefinedparametercriticallyinfluencedbythephysicalpropertiesandmolecularstructureofthepolymerandtheconditionsofmeasurement.Therheologicalcharacteristicsofpolymermeltsdependonanumberofvariables.Itispossiblethatthevaluesofthesevariablesoccurringinthistestwilldiffersubstantiallyfromthoseinlarge-scaleprocesses,whichwouldresultindatathatdoesnotcorrelatedirectlywithprocessingbehavior.Measuretheflowrateofamaterialusinganyoftheconditionslistedforthematerialin8.2.Formanymaterials,therearespecificationsthatrequiretheuseofthistestmethod,butwithsomeproceduralmodificationsthattakeprecedencewhenadheringtothespecification.Therefore,itisadvisabletorefertothatmaterialspecificationbeforeusingthistestmethod.Table1inClassificationD4000liststheASTMmaterialsstandardsthatcurrentlyexist.Analternativetestmethodforpoly(vinylchloride)(PVC)compoundsisfoundinD3364.Additionalcharacterizationofamaterialcanbeobtainedifmorethanoneconditionisused.Inthecasethattwoormoreconditionsareemployed,aFlowRateRatio(FRR)isobtainedbydividingtheflowrateatoneconditionbytheflowrateatanothercondition.ProcedureDprovidesonemethodtomeasuremorethanoneconditioninasinglecharge.Frequently,variationsintesttechnique,apparatusgeometry,ortestconditions,whichdefyallbutthemostcarefulscrutiny,exist,causingdiscrepanciesinflowratedeterminations.AtroubleshootingguideisfoundinAppendixX2anditisaresourcetobeusedtoidentifysourcesoftesterror.1.1Thistestmethodcoversthedeterminationoftherateofextrusionofmoltenthermoplasticresinsusinganextrusionplastometer.Afteraspecifiedpreheatingtime,resinisextrudedthroughadiewithaspecifiedlengthandorificediameterunderprescribedconditionsoftemperature,load,andpistonpositioninthebarrel.Fourproceduresaredescribed.Comparableresultshavebeenobtainedbytheseproceduresininterlaboratoryround-robinmeasurementsofseveralmaterialsandaredescribedinSection15.1.2ProcedureAisusedtodeterminethemeltflowrate(MFR)ofathermoplasticmaterial.Theunitsofmeasurearegramsofmaterial/10minutes(g/10min).Itisbasedonthemeasurementofthemassofmaterialthatextrudesfromthedieoveragivenperiodoftime.Itisgenerallyusedformaterialshavingmeltflowratesthatfallbetween0.15and50g/10min(seeNote1).1.3ProcedureBisanautomaticallytimedmeasurementusedtodeterminethemeltflowrate(MFR)aswellasthemeltvolumerate(MVR)ofthermoplasticmaterials.MFRmeasurementsmadewithProcedureBarereporteding/10minutes.MVRmeasurementsarereportedincubiccentimetres/tenminutes(cm3/10min).ProcedureBmeasurementsarebasedonthedeterminationofthevolumeofmaterialextrudedfromthedieoveragivenperiodoftime.Thevolumeisconvertedtoamassmeasurementbymultiplyingtheresultbythemeltdensityvalueforthematerial(seeNote2).ProcedureBisgenerallyusedwithmaterialshavingmeltflowratesfrom0.50to1500g/10min.1.4Pr......
【中国标准分类号】:G32
【国际标准分类号】:83_080_20
【页数】:15P.;A4
【正文语种】:英语