BS ISO 11476-2000 纸和纸板.C/2°CIE白度的测定(室内照明条件)
时间:2024-05-26 19:15:09 来源: 标准资料网 作者：标准资料网 阅读：8948
【英文标准名称】:Paperandboard.DeterminationofCIEwhiteness,C/2°(indoorilluminationconditions)
【原文标准名称】:纸和纸板.C/2°CIE白度的测定(室内照明条件)
【标准号】:BSISO11476-2000
【标准状态】:作废
【国别】:英国
【发布日期】:2001-08-15
【实施或试行日期】:2001-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:材料的光学性质;添加剂;室内照明;反射比因数;白色;纸板;颜料;反射系数;荧光材料;纸;光学测量;试验条件;颜色
【英文主题词】:Additives;Board(paper);Colour;Definitions;Determination;Fluorescentmaterials;Indoorlighting;Interiorlighting;Opticalmeasurement;Opticalpropertiesofmaterials;Opticaltests;Paper;Pigments;Reflectancefactor;Reflectionfactor;Testing;Testingconditions;White;Whiteness
【摘要】:ThisInternationalStandardspecifiestheproceduretobeusedfordeterminingthewhitenessofpapersandboards,inordertoobtainvalueswhichcorrespondtothevisualappearanceofwhitepapersandboards,withorwithoutfluorescentwhiteningagents,whentheyareviewedindoors.Itisbasedonradiancefactordataobtainedoverthefullvisiblespectralrange(VIS)incontrasttothemeasurementofISObrightness,whichislimitedtotheblueregionofVIS.Inaddition,itspecifiesamethodforadjustmentoftheUV-contenttocorrespondtotheCIEilluminantC,sincetheresultsobtainedwhenfluorescentwhiteningagentsarepresentaredependentupontheUV-contentoftheradiationfallinguponthesample.TheCIEilluminationCistakentoberepresentativeofindoorilluminationconditionsbecauseitcontainsasuitableproportionofUV-radiation.Thismethodisnotapplicabletocolouredpaperscontainingfluorescentdyes.Itisspecificforthesituationwherethefluorescenceoccursintheblueregionofthevisiblespectralrange.ThisInternationalStandardshouldbereadinconjunctionwithISO2469.NOTE1ItisrecognizedthattheCIE-whitenessequationwasdevelopedinthecontextoftheCIEstandardilluminantD65[10],butthesimilaritybetweentherelativespectralpowercurvesfortheCandD65illuminantswithinthevisibleregionandtheclosenessoftheircorrelatedcolourtemperatures(6770Kand6500Krespectively)istakenasajustificationfortheuseoftheanalogouswhitenessequationwiththeCIEilluminantC.NOTE2ArelatedInternationalStandard,ISO11475specifiestheprocedureforobtainingvaluescorrespondingtotheappearanceofpapersviewedundertheCIEilluminantD65.
【中国标准分类号】:Y30
【国际标准分类号】:85_060
【页数】:20P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringRoadRoughnessbyStaticLevelMethod
【原文标准名称】:用静态水平仪法测量道路不平度的测试方法
【标准号】:ASTME1364-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:E17.31
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:公路建设;车行道(公路);表面粗糙度;试验;道路建筑
【英文主题词】:
【摘要】:Thistestmethodprovidesameansforobtainingastandardroughnessindexusinggenericequipment.Thisparticulartestmethodissimplebutlabor-intensive,andismostappropriateforestablishingreferenceroughnesslevelsforalimitednumberoftestsites.Testsiteswhoseroughnessismeasuredwiththistestmethodcanbeusedtocalibrateresponse-typemeasuringsystems(seeTestMethodE1082).Suchsitescanalsobeusedtoverifyproperoperationofotherprofilemeasuringsystems,andtoestablishaccuracylevelsforotherprofilemeasuringsystems(seeTestMethodE950).1.1Thistestmethodcoversthemeasurementofalongitudinalprofileofatravelledsurfaceusingastaticlevelforthepurposeofobtainingaroadroughnessindex.Thistestmethodissuitableforallsurfacetypesthataretravelledbyconventionalgroundvehicles,includingpavedandunpavedroads.1.2Thistestmethodislabor-intensivewithrespecttoothermeansformeasuringlongitudinalprofile,andisusedmainlyfor(1)validatingotherprofile-measuringmethodsand(2)calibratingresponse-typeroughness-measuringsystems.Note18212;Whenmeasuringroadroughnesswithastaticlevelforthepurposesofvalidatingotherprofile-measuringmethodsorcalibratingresponse-typeroughness-measuringsystems,thestaticlevelmeasurementprocessshouldbeevaluatedtoensurethemeasurementsarewithintheresolutionrequiredin.Itisrecommendedthatseverallocationsbemarkedatvariousdistancesfromthelevelandtheselocationsbemeasuredinsequenceseveraltimestoestablishifthereadingsstaywithintheresolutionrequired.Wind,distancebetweentherodandthelevel,surfacetexture,andpositioningoftherodallhavesignificantimpactontherepeatabilityoftheelevationmeasurements.Anyvariationfromthetrueelevationswillprimarilyaffectthebiasasexplainedin.Todeterminetheeffectofrandomvariations,randomvariationscanbeaddedtoanexistingprofileandtheIRIrecalculatedtodeterminetheimpactofthevariations.1.3Thistestmethoddescribesthecomputationrequiredforoneparticulartypeofroughnessindex,thevehiclesimulationusedintheInternationalRoughnessIndex(IRI).Additionally,theprofileobtainedwiththistestmethodcanbeprocessedtoobtainotherroughnessmeasures.1.4Thistestmethodincludestwolevelsofaccuracythatcanbechosenaccordingtoneed.Themoreaccurate,designatedasClass1,reducesthemeasurementerroroftheroughnessindextolessthan2%ofthetruevalueoftheindex.Thesecond,designatedasClass2,involveserrorslessthan5%.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P66
【国际标准分类号】:93_080_20
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:AppendixDFiretubeBoilers-MaintenanceChecks
【原文标准名称】:附录D.火管锅炉.维护检查
【标准号】:ASMESECVIINMAD-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001-07-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:BoilerandPressureVessel.AppendixDFiretubeBoilers-MaintenanceChecks
【中国标准分类号】:J98
【国际标准分类号】:
【页数】:
【正文语种】:英语