【英文标准名称】:Nuclearenergy;Performanceandtestingrequirementsforcriticalitydetectionandalarmsystems
【原文标准名称】:核能临界探测和报警系统的性能和检验要求
【标准号】:ISO7753-1987
【标准状态】:现行
【国别】:国际
【发布日期】:1987-08
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC85
【标准类型】:()
【标准水平】:()
【中文主题词】:γ辐射;警告装置;核动力;核能;辐射防护;警告系统;核辐射;规范;临界安全;临界数据
【英文主题词】:Alarmsystems;Criticality;Criticalitydata;Criticalitysafety;Definitions;Design;Detectors(circuits);Gamma-radiation;Incidents;Nuclearenergy;Nuclearpower;Nuclearradiation;Nuclearsafety;Nucleartechnology;Radiationprotection;Reliability;Safetyengineering;Specifications;Testing;Warningdevices
【摘要】:Isapplicabletoalloperationswithplutonium,uranium233,uraniumenrichedinthe235isotope,andotherfissionablematerials.Doesnotrequireseparateadditionalinstrumentationwhentheoperatinginstrumentationofthefacilitiesmeetsitsrequirements.Isprincipallyconcernedwithgamma-radiationrate-sensingsystems.AnnexAreferstothespecificationofaminimumaccidentofconcern,annexBprovidesexamplesofapplication,andannexCprovidesguidancefordevelopmentofemergencyplans.Doesnotincludedetailsofadministrativestepsorspecificdesignanddescriptionofinstrumentation.
【中国标准分类号】:F09
【国际标准分类号】:17_240;27_120_20
【页数】:9P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMetalPowderSkeletalDensitybyHeliumorNitrogenPycnometry
【原文标准名称】:氦或氮测比重法测定金属粉末骨架密度的标准试验方法
【标准号】:ASTMB923-2010
【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】:B09.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:density;metalpowders;outgassing;pycnometry;refractorymetalpowders;skeletaldensity;skeletalvolume;Density--metalpowders(P/M);Outgassingmaterials/processes;Performance--metals/alloysmaterials/applications;Pycnometer/pycnometry;Refractory
【摘要】:Bothsuppliersandusersofmetalscanbenefitfromknowledgeoftheskeletaldensityofthesematerials.Resultsofmanyintermediateandfinalprocessingstepsarecontrolledbyorrelatedtoskeletaldensityofthemetal.Inaddition,theperformanceofmanysinteredorcastmetalstructuresmaybepredictedfromtheskeletaldensityofthestartingmetalpowder,foralloraportionofthefinishedpiece.1.1Thistestmethodcoversdeterminationofskeletaldensityofmetalpowders.Thetestmethodspecifiesgeneralproceduresthatareapplicabletomanycommercialpycnometryinstruments.Themethodprovidesspecificsampleoutgassingproceduresforlistedmaterials.Itincludesadditionalgeneraloutgassinginstructionsforothermetals.Theidealgaslawformsthebasisforallcalculations.1.2Thistestmethoddoesnotincludeallexistingproceduresappropriateforoutgassingmetalmaterials.Theincludedproceduresprovidedacceptableresultsforsamplesanalyzedduringaninterlaboratorystudy.Theinvestigatorshalldeterminetheappropriatenessoflistedprocedures.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3.1ThistestmethodusesSIunitsasstandardinaccordancewith.StateallnumericalvaluesintermsofSIunitsunlessspecificinstrumentationsoftwarereportsvolumeand/ordensityusingalternateunits.Inthiscase,presentbothreportedandequivalentSIunitsinthefinalwrittenreport.Manyinstrumentsreportskeletaldensityasg/cm3insteadofusingcorrectSIunits(kg/m3).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H16
【国际标准分类号】:77_160
【页数】:4P.;A4
【正文语种】:英语