标准摘要
[中文适用范围]： 本文件规定了两种加速腐蚀试验程序，即方法 A 和 B，用于在户外盐和/或酸雨环境中对具有或不具有永久防腐或临时防腐保护的金属材料进行比较评估。它还规定了所使用的设备。这两项试验涉及将样品循环暴露于酸化盐雾、“干”和“湿”条件下。与传统加速试验（例如 ISO 9227 中规定的中性盐雾 (NSS) 试验）相比，这两项试验的特殊优势在于它们能够更好地重现户外盐和/或酸雨环境中发生的腐蚀。它们还可用于评估外观腐蚀。方法 A 适用于 — 金属及其合金， — 金属涂层（阴极）， — 阳极氧化物涂层，和 — 金属材料上的有机涂层。方法 B 适用于 — 涂有阳极涂层的钢，和 — 涂有转化涂层的阳极涂层的钢。 [外文原描述]： 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.
英文名称Corrosion of metals and alloys — Accelerated cyclic test with exposure to acidified salt spray, dry and wet conditions