DIN EN ISO 4623-2-2004 涂料和清漆.耐丝状腐蚀性的测定.第2部分:铝衬底

作者:标准资料网 时间:2024-05-20 11:11:08  浏览:8967   来源:标准资料网

【英文标准名称】:Paintsandvarnishes-Determinationofresistancetofiliformcorrosion-Part2:Aluminiumsubstrates(ISO4623-2:2003);GermanversionENISO4623-2:2004
【原文标准名称】:涂料和清漆.耐丝状腐蚀性的测定.第2部分:铝衬底
【标准号】:DINENISO4623-2-2004
【标准状态】:现行
【国别】:德国
【发布日期】:2004-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:腐蚀试验;腐蚀;防锈;铝;油漆腻子;保护作用;丝状腐蚀;覆层;耐力;防腐蚀;试验设备;清漆;涂层材料;评定;天然漆;试验;涂料;材料试验;定义
【英文主题词】:
【摘要】:Ascribemarkcutthroughacoatingofpaintsorvarnishesonmetalcangiveristtovarioustypesofcorrosion,suchasblisteringofacoating,corrosionofthemetalunderthecoatingaswellasfiliformcorrosion.Filiformcorrosiontendstodevelopunderspecificconditionsoftemperatureandrelativehumidityandwhentracesofacids,basesorsaltsarepresenteitherunderthepaintcoatingoratbreaksinthecoating.Theseconditionsareoftenfoundinmarineand/orindustrialenvironments.Acertainamountofunder-creepcorrosionofthesubstrate,startingfromthescribemark,willalwaysoccur.Filiformcorrosion,however,isconsideredtobepresentonlyifthetypicalpatternintheformoftreadsisobvious.ThispartofISO4623describesatestprocedureforassessingtheprotectiveactionofcoatingtsofpaintsorvarnishesonaluminiumagainstfiliformcorrosionarisingfromascribemarkcutthroughthecoating.Itisonlysuitableforassessingtheperformanceofthecoating/substratecombinationtested.Itisnotsuitableforpredictingtheperformanceofthecoatingondifferentsubstrates.#,,#
【中国标准分类号】:G51
【国际标准分类号】:87_040
【页数】:12P;A4
【正文语种】:德语