标准摘要
[中文适用范围]： 本国际标准规定了暴露在自然大气环境中超过一年的金属和合金的腐蚀攻击指导值。本国际标准旨在与 ISO 9223 配合使用。标准结构材料的指导腐蚀值可用于工程计算。指导腐蚀值规定了这些标准金属各腐蚀类别的技术内容。附录 A 提供了六种标准化腐蚀类别在长期暴露（长达 20 年）后计算的最大腐蚀攻击示例。附录 B 提供了相对于六种标准化腐蚀类别的标准金属的平均初始腐蚀速率和平均稳态腐蚀速率区间。附录 C 提供了关于钢材成分的钢材腐蚀攻击计算程序。 [外文原描述]： ISO 9224:2012 specifies guiding values of corrosion attack for metals and alloys exposed to natural outdoor atmospheres for exposures greater than one year. It is intended to be used in conjunction with ISO 9223. Guiding corrosion values for standard structural materials can be used for engineering calculations. The guiding corrosion values specify the technical content of each of the individual corrosivity categories for these standard metals. ISO 9224:2012 provides examples of calculated maximum corrosion attack after extended exposure (up to 20 years) for six standardized corrosivity categories. It provides presumed average initial and steady-state corrosion rates of standard metals in intervals relative to six standardized corrosivity categories. It provides the calculation procedure for corrosion attack of steels in regard to their composition.
英文名称Corrosion of metals and alloys — Corrosivity of atmospheres — Guiding values for the corrosivity categories