ISO/TR 5047-1982 连续搬运设备带承载装置或载荷承载器的链式输送机防止由承载器引起损伤的保护实例
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【英文标准名称】:Continuousmechanicalhandlingequipment;Chainconveyorswithbearingdevicesorloadcarriers;Examplesofprotectionagainstinjuriesbyloadcarriers
【原文标准名称】:连续搬运设备带承载装置或载荷承载器的链式输送机防止由承载器引起损伤的保护实例
【标准号】:ISO/TR5047-1982
【标准状态】:现行
【国别】:国际
【发布日期】:1982-10
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC101
【标准类型】:()
【标准水平】:()
【中文主题词】:安全要求;链式输送机;物料装卸;装卸设备;物料搬运设备;偏置滚轮链式输送机;输送机;连续装卸;保护设备
【英文主题词】:Chainconveyors;Conveyors;Materialshandling;Materialshandlingequipment;Offsetrollerchainconveyors;Protectiondevices;Safetyrequirements
【摘要】:Givesexamplesofthevariouskindsofhazardsconnectedwithchainconveyorswithsupportingrodsorrollers,pushrods,singleloadcarriersetc.,suitableclearancesaswellasothersafetymeasuresanddevices.ExplainsthevariousStandardsforloosematerialsandunitloads.Allremarksapplyalsotojointedapronconveyorsespeciallyinrespectofexternalpressureedges,wherecrushingcantakeplace.
【中国标准分类号】:J81;J09
【国际标准分类号】:53_040_20
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:Plastics-Determinationofdynamicmechanicalproperties-Complexshearviscosityusingaparallel-plateoscillatoryrheometer
【原文标准名称】:塑料.动态机械性能的测定.使用平板振荡流变仪测定复合剪切粘度
【标准号】:BSISO6721-10-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-10-01
【实施或试行日期】:2001-10-01
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高聚物;振荡器;角(几何学);动力粘度;机械试验;材料的机械性能;动态试验;剪应力;流变性能;粘度测量;频率;复杂;粘度;塑料;刚度;剪应变;应变;塑料和橡胶技术
【英文主题词】:Definition;Definitions;Determination;Dynamictesting;Mechanicalproperties;Oscillators;Plastics;Polymermelt;Polymers;Rheometry;Shearmodulus;Testing;Viscositymeasurement
【摘要】:ThispartofISO6721specifiesthegeneralprinciplesofamethodfordeterminingthedynamicrheologicalpropertiesofpolymermeltsatangularfrequenciestypicallyintherange0,01rad·sto100rad·sbymeansofanoscillatoryrheometerwithaparallel-plategeometry.Angularfrequenciesoutsidethisrangecanalsobeused(seenote1).Themethodisusedtodeterminevaluesofthefollowingdynamicrheologicalproperties:complexshearviscosityη,dynamicshearviscosityη',theout-of-phasecomponentofthecomplexshearviscosityη",complexshearmodulusG,shearlossmodulusG"andshearstoragemodulusG'.Itissuitableformeasuringcomplexshearviscosityvaluestypicallyuptoapproximately10MPa·s(seenote2).NOTE1Theangular-frequencymeasurementrangeislimitedbythespecificationofthemeasuringinstrumentandalsobytheresponseofthespecimen.Whentestingusingangularfrequencieslowerthan0,1rad·sthetesttimecanincreasesignificantlyasthetimetakentoobtainasinglemeasurementisproportionaltothereciprocaloftheangularfrequency.Consequently,whentestingatlowangularfrequenciesdegradationorpolymerizationofthespecimenismorelikelytooccurandhaveaneffectontheresults.Athighangularfrequenciesthespecimenmaydistortorfractureattheedge,consequentlyinvalidatingthetestresults.NOTE2Therangeofcomplexshearviscosityvaluesthatcanbemeasuredisdependentonthespecimendimensionsandalsothespecificationofthemeasuringinstrument.Foraspecimenofgivendimensions,theupperlimitoftherangeislimitedbythemachine'storquecapacity,angular-displacementresolutionandcompliance.However,correctioncanbemadeforcomplianceeffects.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:22P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringReactionRatesbyAnalysisofBarium-140FromFissionDosimeters
【原文标准名称】:通过分析由裂变剂量计产生的钡140来测定反应速率的试验方法
【标准号】:ASTME393-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:E10.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:分析;核技术;测量技术;核能;剂量计;钡
【英文主题词】:Barium-140;fissiondosimeter;fissionproduct;fissionreactionrates;
【摘要】:1.1Thistestmethoddescribestwoproceduresforthemeasurementofreactionratesbydeterminingtheamountofthefissionproduct140Baproducedbythenon-thresholdreactions235U(n,f),241Am(n,f),and239Pu(n,f),andbythethresholdreactions238U(n,f),237Np(n,f),and232Th(n,f).1.2Thesereactionsproducemanyfissionproducts,amongwhichis140Ba,havingahalf-lifeof12.752days.140Baemitsgammaraysofseveralenergies;however,thesearenoteasilydetectedinthepresenceofotherfissionproducts.Competingactivityfromotherfissionproductsrequiresthatachemicalseparationbeemployedorthatthe140Baactivitybedeterminedindirectlybycountingitsdaughterproduct140La.Thistestmethoddescribesbothprocedure(a),thenondestructivedeterminationof140Babythedirectcountingof140Laseveraldaysafterirradiation,andprocedure(b),thechemicalseparationof140Baandthesubsequentcountingof140Baoritsdaughter140La.1.3Withsuitabletechniques,fissionneutronfluenceratescanbemeasuredintherangefrom107n(neutrons)cm2s1toapproximately1015ncm2s1.1.4Themeasurementoftime-integratedreactionrateswithfissiondosimetersby140Baanalysisislimitedbythehalf-lifeof140Batoirradiationtimesuptoaboutsixweeks.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F40
【国际标准分类号】:17_240
【页数】:5P.;A4
【正文语种】:
