GBN 78-1980-1980 本色棉灯芯绒布
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来源:标准资料网
基本信息
标准名称: | 本色棉灯芯绒布 |
中标分类: |
纺织 >>
棉纺织 >>
棉坯布及制品 |
替代情况: | 被GB/T 14310-1993代替 |
发布日期: | 1900-01-01 |
实施日期: | 1993-08-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
适用范围
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前言
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目录
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引用标准
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所属分类: 纺织 棉纺织 棉坯布及制品
【英文标准名称】:Lampcapsandholderstogetherwithgaugesforthecontrolofinterchangeabilityandsafety-Part1:Lampcaps;Amendment30
【原文标准名称】:灯头、灯座及检验其互换性和安全性的量规.第1部分:灯头.修改件30
【标准号】:IEC60061-1AMD30-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC34B
【标准类型】:()
【标准水平】:()
【中文主题词】:灯;灯座;普通照明灯;电灯;灯头;可置换性;;灯头量规;IEC灯头量规;IEC灯座;电气工程;IEC灯头;安全
【英文主题词】:Capgauges;Electriclamps;Electricalengineering;Generallightingservicelamps;IECcapgauges;IECgauges;IEClampcaps;IEClampholders;Lampcaps;Lampholders;Lamps;Replaceability;Safety
【摘要】:
【中国标准分类号】:K70
【国际标准分类号】:29_140_10
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:PracticeforComputedTomographic(Ct)Examination
【原文标准名称】:计算机断层摄影(CT)检验惯例
【标准号】:ANSI/ASTME1570-1995
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:
【标准类型】:()
【标准水平】:()
【中文主题词】:医学科学;计算机断层摄影
【英文主题词】:computedtomography;medicalsciences
【摘要】:Computedtomography(CT)maybeusedfornewapplications,or,inplaceoffilmradiography,providedthatthecapabilitytodisclosephysicalfeaturesorindicationsthatformtheaccept/rejectcriteriaisfullydocumentedandavailableforreview.TheCTsystemsaddressedinthispracticeutilizeasetoftransmissionmeasurementsmadealongasetofpathsprojectedthroughthetestobjectfrommanydifferentdirections.Eachofthetransmissionmeasurementswithintheseviewsisdigitizedandstoredinacomputer,wheretheyaresubsequentlyconditioned(forexample,normalizedandcorrected)andreconstructedbyoneofavarietyoftechniques.Anin-depthtreatmentofCTprinciplesisgiveninGuideE1441.Computedtomography(CT),aswithconventionalradiographyandradioscopicexamination,isbroadlyapplicabletoanymaterialortestobjectthroughwhichabeamofpenetratingradiationmaybepassedanddetected,includingmetals,plastics,ceramics,metallic/nonmetalliccompositematerial,andassemblies.TheprincipaladvantageofCTisthatitprovidesdensitometric(thatis,radiologicaldensityandgeometry)imagesofthincrosssectionsthroughanobject.Becauseoftheabsenceofstructuralsuperposition,imagesaremucheasiertointerpretthanconventionalradiologicalimages.ThenewusercanquicklylearntoreadCTdatabecauseimagescorrespondmorecloselytothewaythehumanmindvisualizes3Dstructuresthanconventionalprojectionradiology.Further,becauseCTimagesaredigital,theimagesmaybeenhanced,analyzed,compressed,archived,inputasdataintoperformancecalculations,comparedwithdigitaldatafromnondestructiveevaluation(NDE)modalities,ortransmittedtootherlocationsforremoteviewing,oracombinationthereof.Whilemanyofthedetailsaregenericinnature,thispracticeimplicitlyassumestheuseofpenetratingradiation,specificallyxrayand[gamma]ray.ThispracticeprovidesproceduralinformationforperformingCTexaminations.ThetechniquesandtheapplicationsassociatedwithCTexaminationarediverse.Thispracticeisnotintendedtobelimitingorrestrictive,butrathertoaddressthegeneraluseofCTtechnologyandtherebyfacilitateitsuse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificsafetystatements,seeSection8,NBSHandbook114,andFederalStandards21CFR1020.40and29CFR1910.96.
【中国标准分类号】:C43
【国际标准分类号】:35_240_80
【页数】:
【正文语种】:英语