BS EN 12472-1999 由涂层部件镍释放检测用磨损和腐蚀的模拟方法
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来源:标准资料网
【英文标准名称】:Methodforthesimulationofwearandcorrosionforthedetectionofnickelreleasefromcoateditems
【原文标准名称】:由涂层部件镍释放检测用磨损和腐蚀的模拟方法
【标准号】:BSEN12472-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-04-15
【实施或试行日期】:1999-04-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:金属覆层;覆层;化学分析和试验;变应性;试样制备;试验设备;层覆材料;化学危害;磨损试验;腐蚀试验;皮肤;珠宝;镍
【英文主题词】:Abrasiontests;Corrosiontests;Jewellery;Metalcoatings;Nickel;Nickelcontent;Noblemetals;Output;Simulation
【摘要】:
【中国标准分类号】:A29
【国际标准分类号】:39_060
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforNondestructiveAssayofPlutoniumbyPassiveNeutronMultiplicityCounting
【原文标准名称】:用无源中子重复计数法对钚进行无损测定的试验方法
【标准号】:ASTMC1500-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:C26.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Multiplicitycounting;Nondestructiveevaluation(NDE)--nuclearapplications;Passiveneutroncounting;Plutonium
【摘要】:ThistestmethodisusefulfordeterminingtheplutoniumcontentofitemssuchasimpurePuoxide,mixedPu/Uoxide,oxidizedPumetal,Puscrapandwaste,Puprocessresidues,andweaponscomponents.Measurementsmadewiththistestmethodmaybesuitableforsafeguardsorwastecharacterizationrequirementssuchas:Nuclearmaterialsaccountability,Inventoryverification(7),Confirmationofnuclearmaterialscontent(8),Resolutionofshipper/receiverdifferences(9),Excessweaponsmaterialsinspections(10,11),Safeguardsterminationonwaste(12,13),Determinationoffissileequivalentcontent(14).Asignificantfeatureofneutronmultiplicitycountingisitsabilitytocapturemoreinformationthanneutroncoincidencecountingbecauseoftheavailabilityofathirdmeasuredparameter,leadingtoreducedmeasurementbiasformostmaterialcategoriesforwhichsuitableprecisioncanbeattained.Thisfeaturealsomakesitpossibletoassaysomein-plantmaterialsthatarenotamenabletoconventionalcoincidencecounting,includingmoistorimpureplutoniumoxide,oxidizedmetal,andsomecategoriesofscrap,waste,andresidues(10).Calibrationformanymaterialtypesdoesnotrequirerepresentativestandards.Thus,thetechniquecanbeusedforinventoryverificationwithoutcalibrationstandards(7),althoughmeasurementbiasmaybelowerifrepresentativestandardswereavailable.Therepeatabilityofthemeasurementresultsduetocountingstatisticsisrelatedtothequantityofnuclearmaterial,interferingneutrons,andthecounttimeofthemeasurement(15).ForcertainmaterialssuchassmallPu,itemsoflessthan1g,somePu-bearingwaste,orveryimpurePuprocessresidueswherethe(x03B1;,n)reactionrateoverwhelmsthetriplessignal,multiplicityinformationmaynotbeusefulbecauseofthepoorcountingstatisticsofthetriplecoincidenceswithinpracticalcountingtimes(12).ForpurePumetal,pureoxide,orotherwell-characterizedmaterials,theadditionalmultiplicityinformationisnotneeded,andconventionalcoincidencecountingwillprovidebetterrepeatabilitybecausethelowcountingstatisticsofthetriplecoincidencesarenotused.Conventionalcoincidenceinformationcanbeobtainedeitherbychangingtocoincidenceanalyzermode,oranalyzingthemultiplicitydataincoincidencemode.ThemathematicalanalysisofneutronmultiplicitydataisbasedonseveralassumptionsthataredetailedinAnnexA1.Themathematicalmodelconsideredisapointinspace,withassumptionsthatneutrondetectionefficiency,die-awaytime,andmultiplicationareconstantacrosstheentireitem(16,17).Asthemeasurementdeviatesfromtheseassumptions,thebiaseswillincrease.Biasinpassiveneutronmultiplicitymeasurementsisrelatedtodeviationsfromthex201C;pointmodelx201D;suchasvariationsindetectionefficiency,matrixcomposition,ordistributionofnuclearmaterialintheitem''sinterior.Heterogeneityinthedistributionofnuclearmaterial,neutronmoderators,andneutronabsorbersmayintroducebiasesthataffecttheaccuracyoftheresults.Measurementsmadeonitemswithhomogeneouscontentswillbemoreaccuratethanthosemadeonitemswithinhomogeneouscontents.1.1Thistestmethoddescribesthenondestructiveassayofplutoniuminformssuchasmetal,oxide,scrap,residue,orwasteusingpassiveneutronmultiplicitycounting.Thistestmethodp......
【中国标准分类号】:F46
【国际标准分类号】:13_030_30
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:Microlensarray-Part1:Vocabulary(ISO14880-1:2001+Corr.1:2003);GermanversionENISO14880-1:2005
【原文标准名称】:显微透镜系列.第1部分:词汇
【标准号】:ENISO14880-1-2005
【标准状态】:现行
【国别】:
【发布日期】:2005-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:显微透镜数组;特性;光学仪器;符号;应用;使用;术语;可混用性;集成光学;坐标系;定义;电子光学;词汇;光学;透镜;光学特性;光电子器件;可置换性
【英文主题词】:Applications;Compatibility;Coordinatesystems;Definition;Definitions;Electrooptics;Integratedoptics;Lenses;Microlensarray;Opticalinstruments;Opticalproperties;Optics;Optoelectronicdevices;Properties;Replaceability;Symbols;Terminology;Use;Vocabulary
【摘要】:
【中国标准分类号】:N32
【国际标准分类号】:01_040_31;31_260
【页数】:16P.;A4
【正文语种】:英语
