IEC/TR 60977-1989 医用电气设备能量为1MeV～50MeV医用电子加速器功能特性指南
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【英文标准名称】:Medicalelectricalequipment;medicalelectronacceleratorsintherange1MeVto50MeV;guidelinesforfunctionalperformancecharacteristics
【原文标准名称】:医用电气设备能量为1MeV～50MeV医用电子加速器功能特性指南
【标准号】:IEC/TR60977-1989
【标准状态】:作废
【国别】:国际
【发布日期】:1989-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC62C
【标准类型】:()
【标准水平】:()
【中文主题词】:辐射学;质量保证;医学科学;医用电气设备;医疗技术学;工作特性;医疗设备;定义;医学放射学;电医学;检验;质量;规范(验收);试验;电疗设备;电子发射;试验条件;光线疗法;放射器具(医学);电子加速器;放射疗法
【英文主题词】:Definition;Definitions;Electricalmedicalequipment;Electromedicine;Electronaccelerators;Electronemission;Electrotherapyequipment;Inspection;Medicalequipment;Medicalradiology;Medicalsciences;Medicaltechnology;Performancecharacteristics;Phototherapy;Quality;Qualityassurance;Radiology;Radiologyapparatus(medical);Radiotherapy;Specification(approval);Testing;Testingconditions
【摘要】:Thisreportcontainsrecommendedguidelinesformanufacturersandusersandgives,additionally,permissibledeviationsfortypetests.ItshouldbereadinconjunctionwithIEC976.
【中国标准分类号】:C39
【国际标准分类号】:11_040_50
【页数】:109P.;A4
【正文语种】:英语
【英文标准名称】:HardnessConversionTablesforMetals
【原文标准名称】:金属硬度换算表
【标准号】:ANSI/ASTME140-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:2002-01-10
【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】:换算表;硬度测量;金属
【英文主题词】:hardnessmeasurement;conversiontables;metals
【摘要】:ConversionTable1presentsdataintheRockwellChardnessrangeontherelationshipamongBrinellhardness,Vickershardness,Rockwellhardness,Rockwellsuperficialhardness,Knoophardness,andScleroscopehardnessofnon-austeniticsteelsincludingcarbon,alloy,andtoolsteelsintheas-forged,annealed,normalized,andquenchedandtemperedconditionsprovidedthattheyarehomogeneous.ConversionTable2presentsdataintheRockwellBhardnessrangeontherelationshipamongBrinellhardness,Vickershardness,Rockwellhardness,Rockwellsuperficialhardness,Knoophardness,andScleroscopehardnessofnon-austeniticsteelsincludingcarbon,alloy,andtoolsteelsintheas-forged,annealed,normalized,andquenchedandtemperedconditionsprovidedthattheyarehomogeneous.ConversionTable3presentsdataontherelationshipamongBrinellhardness,Vickershardness,Rockwellhardness,Rockwellsuperficialhardness,andKnoophardnessofnickelandhigh-nickelalloys(nickelcontentover50%).Thesehardnessconversionrelationshipsareintendedtoapplyparticularlytothefollowing:nickel-aluminum-siliconspecimensfinishedtocommercialmillstandardsforhardnesstesting,coveringtheentirerangeofthesealloysfromtheirannealedtotheirheavilycold-workedorage-hardenedconditions,includingtheirintermediateconditions.ConversionTable4presentsdataontherelationshipamongBrinellhardness,Vickershardness,Rockwellhardness,andRockwellsuperficialhardnessofcartridgebrass.ConversionTable5presentsdataontherelationshipbetweenBrinellhardnessandRockwellBhardnessofausteniticstainlesssteelplateintheannealedcondition.ConversionTable6presentsdataontherelationshipbetweenRockwellhardnessandRockwellsuperficialhardnessofausteniticstainlesssteelsheet.ConversionTable7presentsdataontherelationshipamongBrinellhardness,Vickershardness,Rockwellhardness,Rockwellsuperficialhardness,andKnoophardnessofcopper.ConversionTable8presentsdataontherelationshipamongBrinellhardness,Rockwellhardness,andVickershardnessofalloyedwhiteiron.ConversionTable9presentsdataontherelationshipamongBrinellhardness,Vickershardness,Rockwellhardness,andRockwellsuperficialhardnessofwroughtaluminumproducts.Manyoftheconversionvaluespresentedhereinwereobtainedfromcomputer-generatedcurvesofactualtestdata.MostRockwellhardnessnumbersarepresentedtothenearest0.1or0.5hardnessnumbertopermitaccuratereproductionofthesecurves.Sinceallconvertedhardnessvaluesmustbeconsideredapproximate,however,allconvertedRockwellhardnessnumbersshallberoundedtothenearestwholenumberinaccordancewithPracticeE29.AppendixX1-AppendixX9containequationsdevelopedfromthedatainTable1-9,respectively,toconvertfromonehardnessscaletoanother.Sinceallconvertedhardnessvaluesmustbeconsideredapproximate,however,allconvertedhardnessnumbersshallberoundedinaccordancewithPracticeE29.Conversionofhardnessvaluesshouldbeusedonlywhenitisimpossibletotestthematerialundertheconditionsspecified,andwhenconversionismadeitshouldbedonewithdiscretionandundercontrolledconditions.Eachtypeofhardnesstestissubjecttocertainerrors,butifprecautionsarecarefullyobserved,thereliabilityofhardnessreadingsmadeoninstrumentsoftheindentationtypewillbefoundcomparable.Differencesinsensitivitywithintherangeofagivenhardnessscale(forexample,RockwellB)maybegreaterthanbetweentwodifferentscalesortypesofinstruments.Theconversionvalues,whetherfromthetablesorcalculatedfromtheequations,areonlyapproximateandmaybeinaccurateforspecificapplication.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:
【正文语种】:英语
【英文标准名称】:Modularunitformachinetoolconstruction.Rotarytablesandmulti-sidedcentrebasesforrotarytables.
【原文标准名称】:机床结构的组合装置.旋转工作台和旋转工作台的多边中心基座
【标准号】:NFE62-201-1996
【标准状态】:现行
【国别】:法国
【发布日期】:1996-06-01
【实施或试行日期】:1996-06-20
【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】:
【英文主题词】:Components;Dimensions;Frames;Machinetools;Modularsystems;Modularunits;Multisidedcentrebases;Rotarytables;Specifications
【摘要】:
【中国标准分类号】:J52
【国际标准分类号】:25_060_10
【页数】:6P;A4
【正文语种】:其他