EN 3058-1994 航空航天系列轴承.机体用轴承.耐腐蚀钢刚性双列滚珠轴承.尺寸和负载;德文版本EN3058:1994
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【英文标准名称】:Aerospaceseries;bearings,airframerolling;rigiddoublerowballbearingsincorrosionresistingsteel;dimensionsandloads;GermanversionEN3058:1994
【原文标准名称】:航空航天系列轴承.机体用轴承.耐腐蚀钢刚性双列滚珠轴承.尺寸和负载;德文版本EN3058:1994
【标准号】:EN3058-1994
【标准状态】:现行
【国别】:
【发布日期】:1994-06
【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】:滚珠轴承;有槽球轴承;公差;质量(物质);负荷;耐腐蚀钢;飞机机架;轴承;双列轴承;飞机机架轴承;滚动轴承;航空运输;尺寸;航空航天运输;航天运输;钢
【英文主题词】:Aerospacetransport;Airtransport;Airframebearings;Airframes;Ballbearings;Bearings;Corrosion-resistantsteels;Dimensions;Double-rowbearings;Groovedballbearings;Loading;Mass;Rollingbearings;Spacetransport;Staticloading;Steels;Tolerances(measurement)
【摘要】:
【中国标准分类号】:V22
【国际标准分类号】:49_035
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:Practiceforuseofaceric-ceroussulfatedosimetrysystem
【原文标准名称】:硫酸铈和硫酸高铈剂量测定系统的使用规程
【标准号】:ISO/ASTM51205-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-03
【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】:电离辐射;辐射计量;定义;X射线;剂量测定;核辐射;电子束;辐射测量;γ辐射
【英文主题词】:Definitions;Dosimetry;Electronbeams;Gamma-radiation;Ionizingradiation;Nuclearradiation;Radiationdose;Radiationmeasurement;X-rays
【摘要】:1Thispracticecoversthepreparation,testing,andproce-dureforusingtheceric-ceroussulfatedosimetrysystemtomeasureabsorbeddoseinwaterwhenexposedtoionizingradiation.Thesystemconsistsofadosimeterandappropriateanalyticalinstrumentation.Forsimplicity,thesystemwillbereferredtoastheceric-ceroussystem.Itisclassifiedasareferencestandarddosimetrysystem(seeISO/ASTMGuide51261).Ceric-cerousdosimetersarealsousedastransfer-stan-darddosimetersorroutinedosimeters.2Thispracticedescribesboththespectrophotometricandthepotentiometricreadoutproceduresfortheceric-ceroussystems.3Thispracticeappliesonlytoγrays,Xrays,andhighenergyelectrons.4Thispracticeappliesprovidedthefollowingaresatis-fied:4.1Theabsorbed-doserangeshallbebetween5×10and5×10Gy(1).4.2Theabsorbed-doserateshallbelessthan10Gy/s(1).4.3Forradionuclidegamma-raysources,theinitialpho-tonenergyshallbegreaterthan0.6MeV.Forbremsstrahlungphotons,theinitialenergyoftheelectronsusedtoproducethebremsstrahlungphotonsshallbeequaltoorgreaterthan2MeV.Forelectronbeams,theinitialelectronenergyshallbegreaterthan8MeV.Note1—Thelowerenergylimitsareappropriateforacylindricaldosimeterampouleof12-mmdiameter.Correctionsfordosegradientsacrossanampouleofthatdiameterorlessarenotrequiredforphotons,butmayberequiredforelectronbeams(2).Theceric-ceroussystemmaybeusedatlowerenergiesbyemployingthinner(inthebeamdirection)dosimetercontainers(seeICRUReport35).4.4Theirradiationtemperatureofthedosimetershallbebetween0and62℃(3).Note2—Thetemperaturecoefficientofdosimeterresponseisknownonlyinthisrange.Foruseoutsidethisrange,thedosimetrysystemshouldbecalibratedfortherequiredrangeofirradiationtemperatures.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.note:2Theboldfacenumbersinparentheserefertothebibliographyattheendofthisstandard.
【中国标准分类号】:F80
【国际标准分类号】:17_240
【页数】:11P;A4
【正文语种】:英语
【英文标准名称】:Refrigerants-Designationsystem
【原文标准名称】:制冷剂.名称与符号系统
【标准号】:ISO817-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-01
【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/TC86
【标准类型】:()
【标准水平】:()
【中文主题词】:冷却剂;制冷液;制冷;符号;数字标志;制冷剂;定义;名称与符号
【英文主题词】:Coolants;Coolingliquids;Definition;Definitions;Designations;Numericaldesignations;Refrigerants;Refrigeration;Symbols
【摘要】:ThisInternationalStandardprovidesanunambiguoussystemfornumberingandassigningcomposition-designatingprefixestorefrigerants.Tableslistingtherefrigerantdesignationsareincluded.ItisintendedtobeusedwithotherrelevantsafetystandardssuchasISO5149,IEC60335-2-24andIEC60335-2-40.
【中国标准分类号】:J73
【国际标准分类号】:71_100_45
【页数】:10P;A4
【正文语种】:英语
