ISO 4623-2:2016描述了一种测试程序，用于评估铝上涂料或清漆的涂料对通过涂层切割的划痕产生的丝状腐蚀的保护作用。 它仅适用于评估涂层/基材组合的性能。不适合预测不同基材上涂层的性能

ISO 4623-2:2016 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.