DIN 6847-2-2008 医疗电子加速器.第2部分:结构辐射防护的构造规则

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【英文标准名称】:Medicalelectronaccelerators-Part2:Rulesforconstructionofstructuralradiationprotection
【原文标准名称】:医疗电子加速器.第2部分:结构辐射防护的构造规则
【标准号】:DIN6847-2-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:事故预防;空调设备;建筑图纸;定义;设计;尺寸选定;身体剂量;电子加速器;电子束;安装;装配;极限(数学);局部剂量;数学计算;医疗设备;医学放射学;医学科学;辐射防护;辐射保护规则;辐射学;评定;安全工程;防护屏蔽;规范(验收);工作数据;X射线
【英文主题词】:Accidentprevention;Air-conditioningequipment;Architecturaldrawings;Definition;Definitions;Design;Dimensioning;Dosestothebody;Electronaccelerators;Electronbeams;Erection;Installation;Limits(mathematics);Localdoses;Mathematicalcalculations;Medicalequipment;Medicalradiology;Medicalsciences;Radiationprotection;Radiationprotectionrules;Radiology;Ratings;Safetyengineering;Shields;Specification(approval);Workingdata;X-rays
【摘要】:
【中国标准分类号】:F91
【国际标准分类号】:11_040_50;13_280
【页数】:39P.;A4
【正文语种】:德语


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【英文标准名称】:StandardTestMethodforParticleSizeDistributionofMetalPowdersandRelatedCompoundsbyLightScattering
【原文标准名称】:光散射法测定金属粉末及相关化合物的粒度分布的标准试验方法
【标准号】:ASTMB822-2010
【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】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:laserdiffraction;lightscattering;metalpowders;particlesizedistribution;powdermetallurgy;Lightscattering;Metalpowders;Miescattering;Multiplescattering;Particleanalysis--metallicmaterials;Powdermetallurgy(P/M)materials;Scattering
【摘要】:Reportedparticlesizemeasurementisafunctionofboththeactualparticledimensionandshapefactoraswellastheparticularphysicalorchemicalpropertiesbeingmeasured.Cautionisrequiredwhencomparingdatafrominstrumentsoperatingondifferentphysicalorchemicalparametersorwithdifferentparticlesizemeasurementranges.Sampleacquisition,handling,andpreparationcanalsoaffectreportedparticlesizeresults.Itisimportanttorecognizethattheresultsobtainedbythistestmethod,oranyothermethodforparticlesizedeterminationusingdifferentphysicalprinciples,maydisagree.Theresultsarestronglyinfluencedbythephysicalprinciplesemployedbyeachmethodofparticlesizeanalysis.Theresultsofanyparticlesizingmethodshouldbeusedonlyinarelativesense;theyshouldnotberegardedasabsolutewhencomparingresultsobtainedbyothermethods.Lightscatteringtheoryhasbeenavailableformanyyearsforuseinthedeterminationofparticlesize.Severalmanufacturersoftestingequipmentnowhaveunitsbasedontheseprinciples.Althougheachtypeoftestingequipmentusesthesamebasicprinciplesforlightscatteringasafunctionofparticlesize,differentassumptionspertinenttoapplicationofthetheory,anddifferentmodelsforconvertinglightmeasurementstoparticlesize,mayleadtodifferentresultsforeachinstrument.Therefore,theuseofthistestmethodcannotguaranteedirectlycomparableresultsfromdifferenttypesofinstruments.Knowledgeoftheparticlesizedistributionofmetalpowdersisusefulinpredictingthepowder-processingbehaviorandultimateperformanceofpowdermetallurgyparts.Particlesizedistributionisrelatedcloselytotheflowability,moldability,compressibility,anddie-fillingcharacteristicsofapowder,aswellastothefinalstructureandpropertiesoffinishedpowdermetallurgy(P/M)parts.Thistestmethodisusefultobothsuppliersandusersofpowdersindeterminingtheparticlesizedistributionsforproductspecifications,manufacturingcontrol,development,andresearch.Thistestmethodmaybeusedtoobtaindataforcomparisonbetweenlotsofthesamematerialorforestablishingconformance,asinacceptancetesting.1.1Thistestmethodcoversthedeterminationoftheparticlesizedistributionbylightscattering,reportedasvolumepercent,ofparticulatematerialsincludingmetalsandcompounds.1.2Thistestmethodappliestoanalyseswithbothaqueousandnonaqueousdispersions.Inaddition,analysiscanbeperformedwithagaseousdispersionformaterialsthatarehygroscopicorreactwithaliquidcarrier.1.3Thistestmethodisapplicabletothemeasurementofparticulatematerialsintherangeof0.4to2000x03BC;m,orasubsetofthatrange,asapplicabletotheparticlesizedistributionbeingmeasured.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H16
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:IRONANDSTEEL.GRAIN-ORIENTEDSTEELSHEETANDSTRIP.
【原文标准名称】:冶金产品.带定向晶粒的磁性钢板
【标准号】:NFC28-920-1987
【标准状态】:作废
【国别】:法国
【发布日期】:1987-06
【实施或试行日期】:1987-05-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:金属;分类系统;验收;名称与符号;分类;钢;特性;带钢;铁;交付;几何;几何特性;磁路;带材;薄板材;钢铁制品;金属板;磁性能;材料的磁性能;接收;磁性合金
【英文主题词】:
【摘要】:
【中国标准分类号】:H42
【国际标准分类号】:
【页数】:17P;A4
【正文语种】:其他