【英文标准名称】:Methodsoftestingplastics-Opticalandcolourproperties,weathering-Determinationofyellownessindex-Determinationofthecolourofnear-whiteornear-colourlessmaterials
【原文标准名称】:塑料的试验方法.风化下光学和颜色性能.黄色指数测定.近似白色或近似无色材料的测定
【标准号】:BS2782-5Methods530Aand530B-1976
【标准状态】:现行
【国别】:英国
【发布日期】:1976-10-29
【实施或试行日期】:1976-10-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:染色试验;材料的光学性质;色度特征;塑料和橡胶技术;高聚物;黄色;塑料;风化
【英文主题词】:Colorimetriccharacteristics;Colourtests;Opticalpropertiesofmaterials;Plastics;Plasticsandrubbertechnology;Polymers;Weathering;Yellow
【摘要】:Thesemethodsdescribeinstrumentalproceduresformeasuringthecolourofnon-fluorescent,near-whiteopaqueortranslucentplasticsmaterials,ornear-colourlesstransparentplasticsmaterials.Method530Aisapplicablewheretheonlycharacteristicofsignificanceisyellowness.A'yellownessindex'isspecifiedforuseinappropriatecases.Method530Bismoregeneralandisapplicablewhereafullerdescriptionofcolourandlightnesscharacteristicsisrequired.Bothmethodsareapplicabletothetransmittanceoftrans-parentandtranslucentplasticsmaterialsandtothereflect-anceofopaqueplasticsmaterialsandsuitablybackedtranslucentplasticsmaterials.Themethodsareofparticularvalueinmeasuringchangesproducedbyageingprocesses.note:*Fluorescencecanbereadilydetectedbyvisualexaminationinadarkroomunderultra-violetillumination,+CommissionInternationaldeI'Eclairage.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:6P;A4
【正文语种】:英语