ZB G 51017-1987 T50-32各色酯胶耐酸漆
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基本信息
| 标准名称： | T50-32各色酯胶耐酸漆 |
| 中标分类： | 化工 >> 涂料、颜料、染料 >> 涂料 |
| 发布日期： | |
| 实施日期： | 2000-12-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： |
适用范围
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前言
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引用标准
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所属分类： 化工 涂料 颜料 染料 涂料
下载地址: 点击此处下载
【英文标准名称】:StandardGuideforComputedTomography(CT)SystemSelection
【原文标准名称】:计算机计算X线断层摄影术(CT)系统选择的标准指南
【标准号】:ASTME1672-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E07.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:计算机断层摄影;导向装置;信息处理;语言的用法;医疗技术学;规范(验收);生产量
【英文主题词】:artifacts;computedtomography(CT);contrastdiscrimination;detectability;dynamicrangeimaging;non-destructiveevaluation;spatialresolution;scanservices;throughput
【摘要】:ThisguidewillaidthepurchaseringeneratingaCTsystemspecification.Thisguidecoverstheconversionofpurchaserrsquo;requirementstosystemcomponentsthatmustoccurforausefulCTsystemspecificationtobeprepared.Additionalinformationcanbegainedindiscussionswithpotentialsuppliersorwithindependentconsultants.Thisguideisapplicabletopurchasersseekingscanservices.ThisguideisapplicabletopurchasersneedingtoprocureaCTsystemforaspecificexaminationapplication.1.1Thisguidecoversguidelinesfortranslatingapplicationrequirementsintocomputedtomography(CT)systemrequirements/specificationsandestablishesacommonterminologytoguidebothpurchaserandsupplierintheCTsystemselectionprocess.ThisguideisapplicabletothepurchaserofbothCTsystemsandscanservices.Computedtomographysystemsarecomplexinstruments,consistingofmanycomponentsthatmustcorrectlyinteractinordertoyieldimagesthatrepeatedlyreproducesatisfactoryexaminationresults.Computedtomographysystempurchasersaregenerallyconcernedwithapplicationrequirements.Computedtomographysystemsuppliersaregenerallyconcernedwiththesystemcomponentselectiontomeetthepurchaser''sperformancerequirements.Thisguideisnotintendedtobelimitingorrestrictive,butrathertoaddresstherelationshipsbetweenapplicationrequirementsandperformancespecificationsthatmustbeunderstoodandconsideredforproperCTsystemselection.1.2Computedtomography(CT)maybeusedfornewapplicationsorinplaceoffilmradiography,providedthatthecapabilitytodisclosephysicalfeaturesorindicationsthatformtheacceptance/rejectioncriteriaisfullydocumentedandavailableforreview.1.3Computedtomography(CT)systemsuseasetoftransmissionmeasurementsmadealongasetofpathsprojectedthroughtheobjectfrommanydifferentdirections.Eachofthetransmissionmeasurementswithintheseviewsisdigitizedandstoredinacomputer,wheretheyaresubsequentlyconditioned(forexample,normalizedandcorrected)andreconstructedbyoneofavarietyoftechniques.Anin-depthtreatmentofCTprinciplesisgiveninGuideE1441.1.4Computedtomography(CT),aswithconventionalradiographyandradioscopicexaminations,isbroadlyapplicabletoanymaterialorobjectthroughwhichabeamofpenetratingradiationmaybepassedanddetected,includingmetals,plastics,ceramics,metallic/nonmetalliccompositematerialandassemblies.TheprincipaladvantageofCTisthatitprovidesdensitometric(thatis,radiologicaldensityandgeometry)imagesofthincrosssectionsthroughanobject.Becauseoftheabsenceofstructuralsuperposition,imagesaremucheasiertointerpretthanconventionalradiologicalimages.ThenewpurchasercanquicklylearntoreadCTdatabecauseimagescorrespondmorecloselytothewaythehumanmindvisualizes3-Dstructuresthanconventionalprojectionradiology.Further,becauseCTimagesaredigital,theimagesmaybeenhanced,analyzed,compressed,archived,inputasdataintoperformancecalculations,comparedwithdigitaldatafromothernondestructiveevaluationmodalities,ortransmittedtootherlocationsforremoteviewing.Whilemanyofthedetailsaregenericinnature,thisguideimplicitlyassumestheuseofpenetratingradiation,specificallyXraysandgammarays.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A15
【国际标准分类号】:35_240_80
【页数】:11P.;A4
【正文语种】:
【英文标准名称】:Opticsandopticalinstruments.Testlensesforcalibrationoffocimeters
【原文标准名称】:光学和光学仪器.焦点计校正用试验透镜
【标准号】:BSISO9342-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1996-12-15
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数学计算;误差;光学仪器;焦距;角度公差;厚度;控制样品;眼科学;眼科设备;眼科试验设备;透镜;试验设备;折射指数;校正;公差(测量)
【英文主题词】:
【摘要】:
【中国标准分类号】:N30
【国际标准分类号】:11_040_70;17_180_30
【页数】:12P;A4
【正文语种】:英语
【原文标准名称】:计算机计算X线断层摄影术(CT)系统选择的标准指南
【标准号】:ASTME1672-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E07.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:计算机断层摄影;导向装置;信息处理;语言的用法;医疗技术学;规范(验收);生产量
【英文主题词】:artifacts;computedtomography(CT);contrastdiscrimination;detectability;dynamicrangeimaging;non-destructiveevaluation;spatialresolution;scanservices;throughput
【摘要】:ThisguidewillaidthepurchaseringeneratingaCTsystemspecification.Thisguidecoverstheconversionofpurchaserrsquo;requirementstosystemcomponentsthatmustoccurforausefulCTsystemspecificationtobeprepared.Additionalinformationcanbegainedindiscussionswithpotentialsuppliersorwithindependentconsultants.Thisguideisapplicabletopurchasersseekingscanservices.ThisguideisapplicabletopurchasersneedingtoprocureaCTsystemforaspecificexaminationapplication.1.1Thisguidecoversguidelinesfortranslatingapplicationrequirementsintocomputedtomography(CT)systemrequirements/specificationsandestablishesacommonterminologytoguidebothpurchaserandsupplierintheCTsystemselectionprocess.ThisguideisapplicabletothepurchaserofbothCTsystemsandscanservices.Computedtomographysystemsarecomplexinstruments,consistingofmanycomponentsthatmustcorrectlyinteractinordertoyieldimagesthatrepeatedlyreproducesatisfactoryexaminationresults.Computedtomographysystempurchasersaregenerallyconcernedwithapplicationrequirements.Computedtomographysystemsuppliersaregenerallyconcernedwiththesystemcomponentselectiontomeetthepurchaser''sperformancerequirements.Thisguideisnotintendedtobelimitingorrestrictive,butrathertoaddresstherelationshipsbetweenapplicationrequirementsandperformancespecificationsthatmustbeunderstoodandconsideredforproperCTsystemselection.1.2Computedtomography(CT)maybeusedfornewapplicationsorinplaceoffilmradiography,providedthatthecapabilitytodisclosephysicalfeaturesorindicationsthatformtheacceptance/rejectioncriteriaisfullydocumentedandavailableforreview.1.3Computedtomography(CT)systemsuseasetoftransmissionmeasurementsmadealongasetofpathsprojectedthroughtheobjectfrommanydifferentdirections.Eachofthetransmissionmeasurementswithintheseviewsisdigitizedandstoredinacomputer,wheretheyaresubsequentlyconditioned(forexample,normalizedandcorrected)andreconstructedbyoneofavarietyoftechniques.Anin-depthtreatmentofCTprinciplesisgiveninGuideE1441.1.4Computedtomography(CT),aswithconventionalradiographyandradioscopicexaminations,isbroadlyapplicabletoanymaterialorobjectthroughwhichabeamofpenetratingradiationmaybepassedanddetected,includingmetals,plastics,ceramics,metallic/nonmetalliccompositematerialandassemblies.TheprincipaladvantageofCTisthatitprovidesdensitometric(thatis,radiologicaldensityandgeometry)imagesofthincrosssectionsthroughanobject.Becauseoftheabsenceofstructuralsuperposition,imagesaremucheasiertointerpretthanconventionalradiologicalimages.ThenewpurchasercanquicklylearntoreadCTdatabecauseimagescorrespondmorecloselytothewaythehumanmindvisualizes3-Dstructuresthanconventionalprojectionradiology.Further,becauseCTimagesaredigital,theimagesmaybeenhanced,analyzed,compressed,archived,inputasdataintoperformancecalculations,comparedwithdigitaldatafromothernondestructiveevaluationmodalities,ortransmittedtootherlocationsforremoteviewing.Whilemanyofthedetailsaregenericinnature,thisguideimplicitlyassumestheuseofpenetratingradiation,specificallyXraysandgammarays.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A15
【国际标准分类号】:35_240_80
【页数】:11P.;A4
【正文语种】:
【英文标准名称】:Opticsandopticalinstruments.Testlensesforcalibrationoffocimeters
【原文标准名称】:光学和光学仪器.焦点计校正用试验透镜
【标准号】:BSISO9342-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1996-12-15
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数学计算;误差;光学仪器;焦距;角度公差;厚度;控制样品;眼科学;眼科设备;眼科试验设备;透镜;试验设备;折射指数;校正;公差(测量)
【英文主题词】:
【摘要】:
【中国标准分类号】:N30
【国际标准分类号】:11_040_70;17_180_30
【页数】:12P;A4
【正文语种】:英语
