EN 13523-14:2001
卷材覆层金属的试验方法.第14部分:粉化(Helmen法)

Coil Coated Metals - Test Methods - Part 14: Chalking (Helmen Method)

作废

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标准号

EN 13523-14:2001

发布

2001年

发布单位

欧洲标准化委员会

替代标准

EN 13523-14:2014

当前最新

EN 13523-14:2014

 

 

适用范围

This part of EN 13523 describesThe procedure for determining objectivelyThe chalking resulting from natural orartificial weathering of an organic coating on a metallic substrate.The advantage of this procedure for measuringimmediately on an instrument. Subjective judgementspecimens is not necessary.g o an orgarnc co歇in gby visual comparison ofchalking fating isthatThe result can be read offtest specimens with referenceExperience to date withThis testresults can only be obtained byapplication toThe test surface.method has been based mainly on artificially weathered specimens. Reproduciblecareful execution of the test. Special attention is paid toThe adhesive tape and its月The test method is not applicable to embossed coatings. InThe case of textured coatings,The degree of texture willinfluence readings. Also dirt collection may influence readings on outdoor weathered specimens.NOTE Different methods for assessing chalking are in use.The results of these different methods are notcomparable.

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