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ISO 9219-2002 航空航天.滑轮用合金钢和镀镉或钛合金钢、MoS润滑或耐腐蚀钢和钝化的紧公差柄、短螺纹薄六角头螺栓.尺寸和质量

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【英文标准名称】:Aerospace-Bolts,thinhexagonalhead,forpulleys,closetoleranceshank,shortthread,inalloysteelandcadmium-platedorintitaniumalloysteel,MoSlubricatedorincorrosion-resistantsteelandpassivated-Dimensionsandmasses
【原文标准名称】:航空航天.滑轮用合金钢和镀镉或钛合金钢、MoS润滑或耐腐蚀钢和钝化的紧公差柄、短螺纹薄六角头螺栓.尺寸和质量
【标准号】:ISO9219-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-12
【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/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:金属覆层;配合螺栓;六角头紧固件;钛合金;质量(物质);浅;螺钉;齿形头紧固件;材料;镀镉;六角头螺钉;规范(验收);螺纹;公差(测量);航空航天运输;钢;作标记;紧固件;航天运输;航空运输;名称与符号;特性;螺母;尺寸
【英文主题词】:Aerospacetransport;Airtransport;Cadmiumplated;Castellated-headfasteners;Designations;Dimensions;Fasteners;Fittingbolts;Hexagonheadscrews;Hexagonal-headfasteners;Marking;Mass;Materials;Metalcoatings;Nuts;Properties;Screws(bolts);Shallow;Spacetransport;Specification(approval);Steels;Threads;Titaniumalloys;Tolerances(measurement)
【摘要】:ThisInternationalStandardspecifiesthecharacteristicsofboltsforpulleyswiththinhexagonalhead,closetoleranceshankandshortthread,—inalloysteelandcadmiumplated,classification1100MPa/235℃;—intitaniumalloyandMoS2lubricated,classification1100MPa/315℃;or—incorrosion-resistantsteelandpassivated.ThisInternationalStandardisapplicabletoboltsusedwithISO9217andISO9218washers,ISO9216nutsandISO1234splitpins.note:1)Minimumtensilestrengthofthematerialandpassivatedatambienttemperature.2)Maximumtemperature,determinedbythesurfacetreatment,thattheboltcanwithstandwithoutcontinuouschangeinitsoriginalcharacteristicsafterreturntoambienttemperature.
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:12P.;A4
【正文语种】:英语


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【英文标准名称】:ServiceSelectionInformationforDigitalStorageMedia
【原文标准名称】:数字存储介质用设备选择信息
【标准号】:ANSI/CEA775-2-A-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】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:数字的;电子产品;信息;设备;储存媒介;视频;视频记录;视频信号
【英文主题词】:Digital;Electronicproducts;Information;Services;Storagemedia;Video;Videorecording;Videosignals
【摘要】:ThisstandardspecifiestheconstructionofMPEG-2TransportStreammultiplexestosupportdigitalrecording.Twotabletypesarespecifiedinthisstandardforusewithdigitalrecordingdevices.
【中国标准分类号】:L64
【国际标准分类号】:35_040
【页数】:
【正文语种】:英语


【英文标准名称】:StandardGuideforEstimatingUncertaintiesinDosimetryforRadiationProcessing
【原文标准名称】:辐射加工用剂量测定不确定度评定的标准指南
【标准号】:ASTMISO/ASTM51707-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:E10.01
【标准类型】:(ISO/ASTM)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorbeddose;accuracy;bias;dosimeter;dosimetry;electronbeams;error;gammaradiation;radiationprocessing;TypeAevaluation;TypeBevaluation;uncertainty;x-ray;ICS
【摘要】:4.1Gamma,electron,andX-ray(bremsstrahlung)facilitiesroutinelyirradiateavarietyofproductssuchasfood,medicaldevices,asepticpackagingandcommodities(seeISO/ASTMPractices51204and51431).Processparametersmustbecarefullycontrolledtoensurethattheseproductsareprocessedwithinspecifications(seeISO11137,Section2.3).Accuratedosimetryisessentialinprocesscontrol(seeISO/ASTMGuide51261).Forabsorbeddosemeasurementstobemeaningful,thecombineduncertaintyassociatedwiththesemeasurementsmustbeestimatedanditsmagnitudequantified.NOTE1-Foracomprehensivediscussionofvariousdosimetrymethodsapplicabletotheradiationtypesandenergiesdiscussedinthisguide,seeICRUReports14,17,34,35andRefs(5,6).4.2ThisguideusesthemethodologyadoptedbytheInternationalOrganizationforStandardizationforestimatinguncertaintiesindosimetryforradiationprocessing(see2.3).ASTMtraditionallyusesthetermsofprecisionandbiaswhereprecisionisameasureoftheextenttowhichreplicatemeasurementsmadeunderspecifiedconditionsareinagreementandbiasisasystematicerror(seeASTMTerminologiesE170andE456,andPracticeE177).Asseenfromthisstandard,componentsofuncertaintyareevaluatedaseitherTypeAorTypeBratherthanintermsofprecisionandbias.ErrorisdifferentfromTypeAandTypeBcomponentsofuncertainty.4.3Althoughthisguideprovidesaframeworkforassessinguncertainty,itcannotsubstituteforcriticalthinking,intellectualhonesty,andprofessionalskill.Theevaluationofuncertaintyisneitheraroutinetasknorapurelymathematicalone;itdependsondetailedknowledgeofthenatureofthemeasurandandofthemeasurementmethodandprocedureused.Thequalityandutilityoftheuncertaintyquotedfortheresultofameasurementthereforeultimatelydependsontheunderstanding,criticalanalysis,andintegrityofthosewhocontributetotheassignmentofitsvalue.4.4Processrequirementsmaynecessitateestablishmentofatargetuncertainty,whichprovidesapointofreferenceforevaluatingwhetherthecalculatedvalueofuncertaintyisacceptablefortheprocessunderconsideration.4.5Resultsofanuncertaintyassessmentmaybeusedtoaidintheevaluationofthestatisticalcontrolinthegivenapplication.Controllablecomponentsofuncertaintymayberankedbycomparisontototaluncertainty.Thisrankingmaybeusedtoidentifyareasforcorrectiveactiontoreducethetotaluncertainty.1.1Thisguidedefinespossiblesourcesofuncertaintyindosimetryperformedingamma,X-ray(bremsstrahlung),andelectronirradiationfacilitiesandoffersproceduresforestimatingtheresultingmagnitudeoftheuncertaintiesinthemeasurementofabsorbeddoseusingadosimetrysystem.Basicconceptsofmeasurement,estimateofthemeasuredvalueofaquantity,"truevalue",error,anduncertaintyaredefinedanddiscussed.Componentsofuncertaintyarediscussedandmethodsaregivenforevaluatingandestimatingtheirvalues.Howthesecontributetothestandarduncertaintyinthereportedvaluesofabsorbeddoseareconsideredandmethodsaregivenforcalculatingthecombinedstandarduncertaintyandanestimateofexpanded(overall)uncertainty.ThemethodologyforevaluatingcomponentsofuncertaintyfollowsISOprocedures(see).Thetraditionalconceptsofprecisionandbiasarenotusedinthisdocument.Examplesaregiveninfiveannexes.1.2Thisguideassumesaworkingknowledgeofstatistics.Severalstatisticaltextsareincludedinthereferences().Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationsprior......
【中国标准分类号】:
【国际标准分类号】:
【页数】:24P.;A4
【正文语种】:英语