ISO 3688-1999 纸浆蓝光漫反射因数(ISO亮度)实验室测量用纸页的制备

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【英文标准名称】:Pulps-Preparationoflaboratorysheetsforthemeasurementofdiffusebluereflectancefactor(ISObrightness)
【原文标准名称】:纸浆蓝光漫反射因数(ISO亮度)实验室测量用纸页的制备
【标准号】:ISO3688-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC6
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;亮度(颜色);纸浆;纸浆;测量;漫反射;ISO亮度;光学试验;反射比因数;白度
【英文主题词】:Brightness(ofcolour);Determination;Diffusereflection;ISObrightness;Measurement;Opticaltests;Paperpulp;Pulp;Reflectancefactor;Whiteness
【摘要】:ThisInternationalStandardspecifiestwoproceduresforthepreparationoflaboratorysheetspriortomeasuringthediffusebluereflectancefactor(ISObrightness).OneisthetraditionalprocedurebasedonpreparationofsheetsinaBuchnerfunnelusingafilterpaperorawirescreen.Intheotherprocedure,thesheetsarepreparedinastandardsheetformer(conventionalorRapidKothen).DetailsofthesubsequentmeasurementprocedurearegiveninISO2470.Itisapplicabletoallwoodpulpsandtomostothertypesofpulp.Pulpswithverylongfibres,suchasthosemadefromunshortenedcotton,flaxandsimilarmaterials,shallbereducedtoasuitablefibrelengthbeforetestingbythismethod.ThisInternationalStandardshallbeusedinconjunctionwithISO2469andISO2470.
【中国标准分类号】:Y31
【国际标准分类号】:85_040
【页数】:5P.;A4
【正文语种】:英语