本文件规定了两种加速腐蚀试验程序，即方法A和B，用于在室外盐和/或酸雨环境中比较评估有无永久腐蚀防护或临时腐蚀防护的金属材料。它还规定了使用的仪器。这两项试验涉及将试样循环暴露在酸化盐雾、“干燥”和“湿润”条件下。 与常规加速试验（如ISO 9227中规定的中性盐雾（NSS）试验）相比，这两种试验的特殊优势在于，它们能够更好地再现室外盐和/或酸雨环境中发生的腐蚀。 它们还可用于评估化妆品腐蚀。 方法A适用于 -金属及其合金， -金属涂层（阴极）， -阳极氧化涂层，以及 -金属材料上的有机涂层。 方法B适用于 -涂有阳极涂层的钢，以及 -涂有阳极涂层的钢，涂有转化涂层。

This document specifies two accelerated corrosion-test procedures, Methods A and B, for the comparative evaluation of metallic materials with or without permanent corrosion protection or temporary corrosion protection in outdoor salt and/or acid rain environments. It also specifies the apparatus used. The two tests involve cyclic exposure of the specimens to acidified salt spray, "dry" and "wet" conditions. The particular advantages of the two tests over conventional accelerated tests, such as the neutral salt spray (NSS) test as specified in ISO 9227 lie in their better ability to reproduce the corrosion that occurs in outdoor salt and/or acid rain environments. They are also useful for evaluating cosmetic corrosion. Method A is applicable to — metals and their alloys, — metallic coatings (cathodic), — anodic oxide coatings, and — organic coatings on metallic materials. Method B is applicable to — steel coated with anodic coatings, and — steel coated with anodic coatings covered with conversion coatings.