ASTM D 600-1990 液体涂料催干剂
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来源:标准资料网
【英文标准名称】:StandardSpecificationforLiquidPaintDriers
【原文标准名称】:液体涂料催干剂
【标准号】:ASTMD600-1990
【标准状态】:作废
【国别】:美国
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:涂料;液体;催干剂;油性涂料
【英文主题词】:Driers;Liquid;Oilpaints;Paints
【摘要】:
【中国标准分类号】:G52
【国际标准分类号】:87_060_99
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforDeterminingContrastSensitivityinRadioscopy
【原文标准名称】:射线检验中测定衬比灵敏度的标准实施规程
【标准号】:ASTME1647-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contrastsensitivitygauge;gammaray;imageformation;imageprocessing;imagequalityindicator;line-pairspermillimeter;penetratingradiation;spatialresolution;X-ray;Contrastsensitivity;Gammaradiation;Imageanalysis;IQI(imagequalit
【摘要】:Thecontrastsensitivitygaugemeasurescontrastsensitivityindependentoftheimagingsystemspatialresolutionlimitations.Thethicknessrecessdimensionsofthecontrastsensitivitygaugearelargewithrespecttothespatialresolutionlimitationsofmostimagingsystems.Fourlevelsofcontrastsensitivityaremeasured:4%,3%,2%,and1%.Thecontrastsensitivitygaugeisintendedforuseinconjunctionwithahigh-contrastresolutionmeasuringgauge,suchastheEN462x2013;5DuplexWireImageQualityIndicator.Suchgaugesmeasurespatialresolutionessentiallyindependentoftheimagingsystem''scontrastsensitivity.Suchmeasurementsareappropriateforthequalificationandperformancemonitoringofradiographicandradioscopicimagingsystemswithfilm,realtimedevices,ComputedRadiography(CR)andDigitalDetectorArrays(DDA).Radioscopic/radiographicsystemperformancemaybespecifiedbycombiningthemeasuredcontrastsensitivityexpressedasapercentagewiththespatialresolutionexpressedinmillimetersofunsharpness.FortheEN462x2013;5spatialresolutiongauge,theunsharpnessisequaltotwicethewirediameter.Forthelinepairgauge,theunsharpnessisequaltothereciprocaloftheline-pair/mmvalue.Asanexample,animagingsystemthatexhibits2%contrastsensitivityandimagesthe0.1mmEN462x2013;5pairedwires(equivalenttoimaging5line-pairs/millimeterresolutiononaline-pairgauge)performsata2%x2013;0.2mmsensitivitylevel.AstandardmethodofevaluatingoverallradioscopicsystemperformanceisgiveninPracticeE1411andinEN13068x2013;1andforCRitcanbefoundinPracticeE2445.1.1Thispracticecoversthedesignandmaterialselectionofacontrastsensitivitymeasuringgaugeusedtodeterminetheminimumchangeinmaterialthicknessordensitythatmaybeimagedwithoutregardtospatialresolutionlimitations.1.2Thispracticeisapplicabletotransmitted-beamradiographicandradioscopicimagingsystemsutilizingX-rayandgammarayradiationsources.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.TheSIunitsgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificsafetystatements,seeNIST/ANSIHandbook114Section8,CodeofFederalRegulations21CFR1020.40and29CFR1910.96.
【中国标准分类号】:H26
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:英语
基本信息
标准名称: | 双孢蘑菇 |
中标分类: |
农业、林业 >>
经济作物 >>
其他经济作物 |
替代情况: | 被NY/T 224-2006代替 |
发布日期: | 1994-05-13 |
实施日期: | 1995-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 2006-04-01 |
出版日期: | 1900-01-01 |
页数: | 5页 |
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: 农业 林业 经济作物 其他经济作物