BS EN 13523-21:2017规定了评估有机涂层性能的程序 在户外暴露期间和之后在金属基底上。面板设计、准备和安装程序 根据EN 13523-19进行户外暴露。清洗面板后，面板上可能会残留一些污垢。残留的污垢会影响精度 以及在暴露面板上进行的光泽和颜色读数的精度，尽管在 符合标准。与其他精确测量不同，本欧洲标准的目标 是报告线圈涂层面板的腐蚀和/或油漆降解行为的趋势。 交叉引用:ISO 4628-5:2016EN ISO 4628-5:2016EN ISO 4628-5:2016EN ISO 4628-5:2016EN ISO 4628-2:2016 ASEN 13523-3:2014EN ISO 4628-2:2016（ISO 4628-2:2016）ASEN 13523-3:2014HTTPHTTP http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http http4628-10（ISO 4628-10:2016）ASEN ISO 4628-7（ISO 4628-7:2016）ASISO 4628-7:2016ISO 4628-10:2016EN ISO 4628-6（ISO 4628-6:2011）以及购买本文件时可用的所有现行修订本。

BS EN 13523-21:2017 specifies the procedure for evaluating the behaviour of an organic coating on a metallic substrate during and after outdoor exposure. Panel design, preparation and the procedure for outdoor exposure are performed in accordance with EN 13523-19.After washing of the panel, some dirt can remain on the panel. This remaining dirt can influence the accuracy and precision of readings of gloss and colour, performed on exposed panels, although carried out in accordance with the standards. Unlike other precise measurements, the objective of this European Standard is to report on trends in the corrosion and/or paint degradation behaviour of coil coated panels.Cross References:ISO 4628-5:2016EN ISO 4628-2 (ISO 4628-2:2016) ASEN 13523-3:2014EN ISO 4628-8 (ISO 4628-8:2012) ASEN ISO 4628-4 (ISO 4628-4:2016) ASEN 1396:2015ISO 4628-3:2016EN 13523-0:2014ISO 4628-8:2012 ED2EN 10169:2010EN ISO 4628-3 (ISO 4628-3:2016) ASEN 13523-14:2001EN 13523-2:2014ISO 4628-4:2016EN 13523-19:2011ISO 4628-2:2003 Ed 2EN ISO 4628-5 (ISO 4628-5:2016) ASISO 4628-6:2011 Ed 3EN ISO 4628-10 (ISO 4628-10:2016) ASEN ISO 4628-7 (ISO 4628-7:2016) ASISO 4628-7:2016ISO 4628-10:2016EN ISO 4628-6 (ISO 4628-6:2011) ASAll current amendments available at time of purchase are included with the purchase of this document.