ANSI/ASTM D2538-1995 用扭矩流变仪测定聚氯乙烯树脂熔化的试验方法(08.02)
时间:2024-05-18 02:21:23 来源: 标准资料网 作者：标准资料网 阅读：8849
【英文标准名称】:TestMethodforFusionofPoly(VinylChloride)(PVC)ResinsUsingaTorqueRheometer(08.02)
【原文标准名称】:用扭矩流变仪测定聚氯乙烯树脂熔化的试验方法(08.02)
【标准号】:ANSI/ASTMD2538-1995
【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】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;聚氯乙烯
【英文主题词】:plastics;polyvinylchloride
【摘要】:Thispracticecoverstherelativefusioncharacteristicsofpoly(vinylchloride)compounds.Thetestproceduresappearinthefollowingorder:SectionFusionTest9ThermalStabilityTest10Color-HoldStabilityTest11ShearStabilityTest12ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection8.Note1—TherearenoISOstandardscoveringtheprimarysubjectmatterofthisASTMstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:
【正文语种】:英语
【英文标准名称】:Stoplightswitches,mechanical,foranominalvoltageupto24V
【原文标准名称】:第2部分:额定电压最高可达24V的机械式停车指示灯开关
【标准号】:DIN72759-2-1977
【标准状态】:现行
【国别】:德国
【发布日期】:1977-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数据;尺寸;停车灯开关;开关;道路车辆;额定电压;摩托车
【英文主题词】:motorvehicles;roadvehicles;switches;stoplightswitches;data;ratedvoltage;dimensions
【摘要】:Stoplightswitches,mechanical,foranominalvoltageupto24V
【中国标准分类号】:T36
【国际标准分类号】:43_040_10
【页数】:1P;A4
【正文语种】:德语
【英文标准名称】:StandardPracticefortheEvaluationofSingle-PanMechanicalBalances
【原文标准名称】:单盘机械天平的评定的标准实施规程
【标准号】:ASTME319-1985(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1985
【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】:E41.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:balances;scales;weighinginstruments;Acceptancecriteria/testing;Balances;Laboratoryapparatus;Performance--laboratoryinstrumentation/process;Precisioninstrumentation;Weight
【摘要】:MonitoringWeighingPerformance8212;Thispracticeprovidesresultsintheformofcontrolchartswhichmeasuretheweighingcapabilityatthetimeofthetest.Aseriesoftestsatappropriateintervalswillmonitorbalanceperformanceoveraperiodoftime.Amarkedchangefromexpectedperformancemayresultfromavarietyofcausesincluding:maladjustment,damage,dirt,foreignmaterial,andthermaldisturbances.Ifthetestresultsaretoindicatefutureperformance,anydisturbancesthatoccurexteriortothebalancemustbebroughtundercontrol(2).AcceptanceTests8212;Thispracticemayalsobeusedasacceptancetestsfornewbalances.Forthispurpose,thetestsshouldbeconductedunderfavorable,butnotnecessarilyideal,conditions.Sincesystematicerrorinthecourseofthezeroandthecourseofthesensitivitymaybecausedbydisturbancesexternaltothebalance,limitsontheseerrorsarenotordinarilyprescribedinacceptancerequirements.1.1Thispracticecoverstestingproceduresforevaluatingtheperformanceofsingle-armbalancesrequiredbyASTMstandards.1.2Thispracticeisintendedforbutnotlimitedtosensitivityratiosof106orbetterandon-scalerangesof1000xdormorewhered=reabilityeitherdirectlyorbyestimation.1.3Thispracticecanalsobeappliedtoothersingle-panbalanceswithmechanicalweightchangingofdifferentcapacitiesorsensitivitieswithappropriatetestloadsandcalibrationweights.Note18212;Mechanicalbalancesofthistypehavelargelybeenreplacedbyautomaticelectronicbalancesincorporatingavarietyofoperationalprinciples.Nevertheless,somesingle-panmechanicalbalancesarestillmanufacturedandmanyolderbalanceswillremaininserviceforyearstocome.Onetypeofautomaticelectronicbalance,theso-calledx201C;hybrid,x201D;bearsconsiderablesimilaritytosingle-panmechanicalbalancesofthenulltype.(1)1.4Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N13
【国际标准分类号】:
【页数】:9P.;A4
【正文语种】:英语