【英文标准名称】:Paintsandvarnishes-Evaluationofdegradationofcoatings-Designationofquantityandsizeofdefects,andofintensityofuniformchangesinappearance-Assessmentofdegreeofchalkingbyvelvetmethod
【原文标准名称】:涂料和清漆.漆膜降解的评定.缺陷的量值和大小以及外观均匀变化强度的规定.用丝绒法评定粉化等级
【标准号】:BSENISO4628-7-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-10-07
【实施或试行日期】:2003-10-07
【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】:老化(材料);外观;粉化;粉化等级;覆层材料;覆层;颜色;损伤;缺陷;定义;定义(术语);名称与符号;评定;强度;天然漆;涂料;表面缺陷;试验报告;试验;清漆;明显的;风化;权重尺度;泛黄度
【英文主题词】:Ageing(materials);Appearance;Chalking;Chalkinggrade;Coatingmaterials;Coatings;Colour;Damage;Defects;Definition;Definitions;Designations;Evaluations;Intensity;Lacquers;Paints;Surfacedefects;Testreports;Testing;Varnishes;Visibleness;Weathering;Weightingscale;Yellowness
【摘要】:ThispartofISO4628describesamethodsuitable,inparticular,forratingthedegreeofchalkingonwhiteorcolouredexteriorcoatingsandcoatingsystemsonroughsurfaces(i.e.thosehavingaroughnessgreaterthansegment4ofreferencecomparatorGasdescribedinISO8503-1).Thetestmethodspecifiedmayalsobeusedfortheassessmentofthedegreeofchalkingofcoatingsandcoatingsystemsonsmoothsurfaces,butthemethodspecifiedinISO4628-6ispreferableforthispurpose.Thetestmethodisapplicabletocoatingsandcoatingsystemsonmineralsubstrates,e.g.fibrecement,brick,concreteandrenderings,independentofthestructureofthesurface.Themethodcanbeusedquiteeffectivelybyexperiencedoperatorsandisrecommendedforlaboratoryuseaswellasforon-siteevaluation.NOTE1Whenareferencetothistestmethodisincludedinspecifications,thetestconditions(i.e.weatheringmethodandsubstrate)shouldbeagreedbetweentheinterestedparties.NOTE2ThemethoddescribedinthispartofISO4628isarelativerankingmethodandisthereforenotsuitableforuseinagreementsbetweenparties.See,however,theNotetoTable1.ISO4628-1definesthesystemusedfordesignatingthequantityandsizeofdefectsandtheintensityofchangesinappearanceofcoatingsandoutlinesthegeneralprinciplesofthesystem.Thissystemisintendedtobeused,inparticular,fordefectscausedbyageingandweathering,andforuniformchangessuchascolourchanges,forexampleyellowing.
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:14P;A4
【正文语种】:英语