ASTM D2244-2007 仪器测量颜色坐标中允许色差和色差的计算用标准实施规程

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【英文标准名称】:StandardPracticeforCalculationofColorTolerancesandColorDifferencesfromInstrumentallyMeasuredColorCoordinates
【原文标准名称】:仪器测量颜色坐标中允许色差和色差的计算用标准实施规程
【标准号】:ASTMD2244-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E12.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:计算方法;涂层;颜色;色差;数学计算;测量;光学;涂漆;涂料;工艺
【英文主题词】:color;colordifference;colormetrics;colorspaces;colortolerances;
【摘要】:1.1Thispracticecoversthecalculation,frominstrumentallymeasuredcolorcoordinatesbasedondaylightillumination,ofcolortolerancesandsmallcolordifferencesbetweenopaquespecimenssuchaspaintedpanels,plasticplaques,ortextileswatches.Whereitissuspectedthatthespecimensmaybemetameric,thatis,possessdifferentspectralcurvesthoughvisuallyalikeincolor,PracticeD4086shouldbeusedtoverifyinstrumentalresults.ThetolerancesanddifferencesdeterminedbytheseproceduresareexpressedintermsofapproximatelyuniformvisualcolorperceptioninCIE1976CIELABopponent-colorspace(1),CMCtoleranceunits(2),CIE94toleranceunits(3),theDIN99colordifferenceformulagiveninDIN6176(4),orthenewCIEDE2000colordifferenceunits(5).1.2Forproductspecification,thepurchaserandthesellershallagreeuponthepermissiblecolortolerancebetweentestspecimenandreferenceandtheprocedureforcalculatingthecolortolerance.Eachmaterialandconditionofusemayrequirespecificcolortolerancesbecauseotherappearancefactors,(forexample,specimenproximity,gloss,andtexture),mayaffectthecorrelationbetweenthemagnitudeofameasuredcolordifferenceanditscommercialacceptability.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:A26
【国际标准分类号】:17_180_20
【页数】:10P.;A4
【正文语种】: