BS EN ISO 12944-2:2017涉及钢结构所处主要环境的分类 以及这些环境的腐蚀性。本文件根据标准规定的质量损失（或厚度损失）定义大气腐蚀性类别 并描述了钢结构所处的典型自然大气环境 暴露，提供腐蚀性评估建议，描述浸没在水中或埋在土壤中的结构的不同环境类别，并提供可能导致腐蚀性显著增加的一些特殊腐蚀应力的信息 腐蚀速率或对保护漆系统的性能提出更高的要求。与特定环境或腐蚀性类别相关的腐蚀应力代表 控制防护涂料系统选择的基本参数。购买本文件时可获得的所有当前修订均包含在购买本文件中。

BS EN ISO 12944-2:2017 deals with the classification of the principal environments to which steel structures are exposed, and the corrosivity of these environments. This documentdefines atmospheric-corrosivity categories, based on mass loss (or thickness loss) by standard specimens, and describes typical natural atmospheric environments to which steel structures are exposed, giving advice on the estimation of the corrosivity,describes different categories of environment for structures immersed in water or buried in soil, andgives information on some special corrosion stresses that can cause a significant increase in corrosion rate or place higher demands on the performance of the protective paint system.The corrosion stresses associated with a particular environment or corrosivity category represent one essential parameter governing the selection of protective paint systems.All current amendments available at time of purchase are included with the purchase of this document.