【英文标准名称】:AmericanNationalStandardPerformanceRequirementsforSpectroscopicPersonalRadiationDetectors(SPRDs)forHomelandSecurity
【原文标准名称】:国家安全用光谱个人辐射检测器(SPRDs)用性能要求的美国国家标准
【标准号】:IEEEN42.48-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-01-25
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisstandarddescribesdesignandperformancerequirementsalongwithtestingmethodsforevaluatingradiationdetectioninstrumentsthatarepocket-sizedandwornonthebodyforthepurposeofrapiddetectionandidentificationofradioactivematerials.Theperformancerequirementscontainedinthisstandardaremeanttoprovideameansforverifyingthecapabilityoftheseinstrumentstoreliablydetectchangesabovebackgroundlevelsofradiation,notifytheusertothesechanges,andprovideameanstodetermineifthealarmwascausedbyaradionuclideofinterestthatmayrequirefurtherevaluation.Thesedevicesarenotprimarilyintendedtoprovideameasurementofdose-equivalentrate.However,theirindicationcanprovideanapproximatevalueofexposureratethatshouldbereasonablyaccurate.TheyarealsonotmeanttoprovideradionuclideidentificationatthesamelevelasradionuclideidentificationdetectorsdefinedinANSIN42.34.1Successfulcompletionofthetestsdescribedinthisstandardshouldnotbeconstruedasanabilitytoidentifyallradionuclidesinallenvironments.
【中国标准分类号】:N30
【国际标准分类号】:
【页数】:47P.;A4
【正文语种】:英语


【英文标准名称】:Aerospaceseries-Nuts,hexagonal,self-locking,withcounterboreandcaptivewasher,inheatresistingsteel,MoSlubricated-Classification:1100MPa(atambienttemperature)/315°C;GermanandEnglishversionEN2883:2009
【原文标准名称】:航空航天系列.MoS2润滑耐热钢制沉头自锁六角螺母和附属垫圈.等级:1100MPa(环境温度)/315℃.德文和英文版本EN2883-2009
【标准号】:EN2883-2009
【标准状态】:现行
【国别】:
【发布日期】:2009-10
【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】:航空航天运输;航空运输;附属垫圈;沉头孔钻;圆柱形;名称与符号;尺寸规格;紧固件;六角螺母;六角头紧固件;高温;多语种的;螺母;特性;自锁紧;航天运输;规范(验收);钢;表面处理;重量
【英文主题词】:Aerospacetransport;Airtransport;Captivewashers;Counterbores;Cylindricalshape;Designations;Dimensions;Fasteners;Hexagonnuts;Hexagonal-headfasteners;Hightemperature;Multilingual;Nuts;Properties;Self-locking;Spacetransport;Specification(approval);Steels;Surfacetreatment;Weights
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_30
【页数】:14P.;A4
【正文语种】:英语