ISO 4623-2:2016
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iso 4623-2:2016 英文介绍a scribe mark cut through a coating of paints or varnishes on metal can give rise to various types of corrosion, such as blistering of the coating, corrosion of the metal under the coating as well as filiform corrosion. filiform corrosion tends to develop under specific conditions of temperature and relative humidity and when traces of acids, bases or salts are present either under the paint coating or at breaks in the coating. these conditions are often found in marine and/or industrial environments. a certain amount of under-corrosion of the coating, starting from the scribe mark, will always occur. filiform corrosion, however, is considered to be present only if the typical pattern in the form of threads is obvious.
1 scopethis part of iso 4623 describes a test procedure for assessing the protective action of coatings of paints or varnishes on aluminium against filiform corrosion arising from a scribe mark cut through the coating.
it is only suitable for assessing the performance of the coating/substrate combination tested. it is not suitable for predicting the performance of the coating on different substrates.
2 normative referencesthe following referenced documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. for dated references, only the edition cited applies. for undated references, the latest edition of the referenced document (including any amendments) applies.
iso 1513, paints and varnishes — examination and preparation of test samples
iso 1514, paints and varnishes — standard panels for testing
iso 2808, paints and varnishes — determination of film thickness
iso 3270, paints and varnishes and their raw materials — temperatures and humidities for conditioning and testing
iso 4628-8, paints and varnishes — evaluation of degradation of coatings — designation of quantity and size of defects, and of intensity of uniform changes in appearance — part 8: assessment of degree of delamination and corrosion around a scribe or other artificial defect
iso 4628-10, paints and varnishes — evaluation of degradation of coatings — designation of quantity and size of defects, and of intensity of uniform changes in appearance — part 10: assessment of degree of filiform corrosion
iso 15528, paints, varnishes and raw materials for paints and varnishes — sampling
3 terms and definitionsfor the purposes of this document, the following terms and definitions apply.
3.1filiform corrosion
type of corrosion proceeding under a coat of paint, varnish or related product, in the form of threads, generally starting from bare edges or from local damage to the coating
note 1 to entry: usually the threads are irregular in length and direction of growth, but they may also be nearly parallel and of approximately equal length. they usually follow the extrusion direction and do not cross over one another. they need to be initiated by aggressive ions.
kingjo-fog crh盐雾试验箱用于iso 4623-2:2016 的测试方法
kingjo-fog crh盐雾试验箱用于iso 4623-2:2016 的测试方法
东莞市勤卓环境测试设备有限公司
2017年云南泰国签证、大专泰国留学咨询机构
浙江职称代评哪家费用合理
供应厂家直销 履带式自动售货机
超浓缩泡泡液 15ML简装 泡泡枪泡泡机泡泡棒专用
江苏桌面云实验室公司
ISO 4623-2:2016
5.8G企业级无线ap 商用，学校，办公楼，工厂等大面积使用
成品供应 内衣肩带吊袜带 1.5cm花边吊袜带
滨江纳税筹划有哪些
通州哪家商业空间装修更专业，就选晟艺恒达
新品推荐 儿童印花连衣裙 立领连衣裙 蝴蝶结腰带小围裙
弧形木纹铝方通,铝方通,宝盈建材
河北米粉技术培训哪家好？
加热造影剂恒温箱
射频电缆样品、信号电缆、光缆样
方头螺栓 滑动螺丝 标志牌滑槽专用 T型螺栓 金坤紧固件制造
保友pofit智能电脑椅揭秘曝光,买前必看，是牌子吗
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【EM600LED-T开孔尺寸EM600LED-T】
和平法语小语种培训-新东方是您理想的选择
iso 4623-2:2016 英文介绍a scribe mark cut through a coating of paints or varnishes on metal can give rise to various types of corrosion, such as blistering of the coating, corrosion of the metal under the coating as well as filiform corrosion. filiform corrosion tends to develop under specific conditions of temperature and relative humidity and when traces of acids, bases or salts are present either under the paint coating or at breaks in the coating. these conditions are often found in marine and/or industrial environments. a certain amount of under-corrosion of the coating, starting from the scribe mark, will always occur. filiform corrosion, however, is considered to be present only if the typical pattern in the form of threads is obvious.
1 scopethis part of iso 4623 describes a test procedure for assessing the protective action of coatings of paints or varnishes on aluminium against filiform corrosion arising from a scribe mark cut through the coating.
it is only suitable for assessing the performance of the coating/substrate combination tested. it is not suitable for predicting the performance of the coating on different substrates.
2 normative referencesthe following referenced documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. for dated references, only the edition cited applies. for undated references, the latest edition of the referenced document (including any amendments) applies.
iso 1513, paints and varnishes — examination and preparation of test samples
iso 1514, paints and varnishes — standard panels for testing
iso 2808, paints and varnishes — determination of film thickness
iso 3270, paints and varnishes and their raw materials — temperatures and humidities for conditioning and testing
iso 4628-8, paints and varnishes — evaluation of degradation of coatings — designation of quantity and size of defects, and of intensity of uniform changes in appearance — part 8: assessment of degree of delamination and corrosion around a scribe or other artificial defect
iso 4628-10, paints and varnishes — evaluation of degradation of coatings — designation of quantity and size of defects, and of intensity of uniform changes in appearance — part 10: assessment of degree of filiform corrosion
iso 15528, paints, varnishes and raw materials for paints and varnishes — sampling
3 terms and definitionsfor the purposes of this document, the following terms and definitions apply.
3.1filiform corrosion
type of corrosion proceeding under a coat of paint, varnish or related product, in the form of threads, generally starting from bare edges or from local damage to the coating
note 1 to entry: usually the threads are irregular in length and direction of growth, but they may also be nearly parallel and of approximately equal length. they usually follow the extrusion direction and do not cross over one another. they need to be initiated by aggressive ions.
kingjo-fog crh盐雾试验箱用于iso 4623-2:2016 的测试方法
kingjo-fog crh盐雾试验箱用于iso 4623-2:2016 的测试方法
东莞市勤卓环境测试设备有限公司
2017年云南泰国签证、大专泰国留学咨询机构
浙江职称代评哪家费用合理
供应厂家直销 履带式自动售货机
超浓缩泡泡液 15ML简装 泡泡枪泡泡机泡泡棒专用
江苏桌面云实验室公司
ISO 4623-2:2016
5.8G企业级无线ap 商用，学校，办公楼，工厂等大面积使用
成品供应 内衣肩带吊袜带 1.5cm花边吊袜带
滨江纳税筹划有哪些
通州哪家商业空间装修更专业，就选晟艺恒达
新品推荐 儿童印花连衣裙 立领连衣裙 蝴蝶结腰带小围裙
弧形木纹铝方通,铝方通,宝盈建材
河北米粉技术培训哪家好？
加热造影剂恒温箱
射频电缆样品、信号电缆、光缆样
方头螺栓 滑动螺丝 标志牌滑槽专用 T型螺栓 金坤紧固件制造
保友pofit智能电脑椅揭秘曝光,买前必看，是牌子吗
广东竹凉席,金诺箱包质量放心,竹凉席厂家直销
【EM600LED-T开孔尺寸EM600LED-T】
和平法语小语种培训-新东方是您理想的选择