BS EN ISO 8994-2011 铝和铝合金的阳极氧化.点状腐蚀评估的评级体系.网格法

标准号：BS EN ISO 8994-2011
中文标准名称：铝和铝合金的阳*氧化.点状腐蚀评估的评级体系.网格法
英文标准名称：Anodizing of aluminium and its alloys. Rating system for the evaluation of pitting corrosion. Grid method
标准类型：A29
发布日期：2011/3/31 12:00:00
实施日期：2011/3/31 12:00:00
中国标准分类号：A29
国际标准分类号：25.220.20;77.060
适用范围：This International Standard specifies a grid rating system that provides a means of defining levels ofperformance of anodic oxidation coatings on aluminium and its alloys that have been subjected to corrosiontests.This rating system is applicable to pitting corrosion resulting from- accelerated tests,- exposure to corrosive environments, and- practical service tests.This International Standard takes into account only pitting corrosion of the basis metal resulting frompenetration of the protective anodic oxidation coating.NOTE 1 ISO 8993[3] describes a similar rating system based on defined chart scales.NOTE 2 The grid rating system is frequently used for rating the results of short-term corrosion tests for relatively thinanodic oxidation coating, such as those used in the automotive industry.