What is EN ISO 12944-2:2017 ?

EN ISO 12944-2:2017 is an essential international standard for protecting steel structures against corrosion. It defines four categories of corrosivity levels and provides guidelines for surface preparation and protective coatings to ensure long-term durability of steel structures.

EN ISO 12944-1:2017 is focused on the maintenance of steel structures in both industrial and non-industrial environments. It helps engineers, architects, and professionals involved in construction to understand and implement effective corrosion protection measures.

The standard outlines various methods of surface preparation, types of protective coatings, and application procedures to ensure the longevity and durability of steel structures. It also provides key guidelines and recommendations for the classification of environments, the level of threat, and the required approach to surface preparation and protective coating systems.

The four corrosivity categories defined in EN ISO 12944-2:2017 are C1 (very low corrosivity), C2 (low corrosivity), C3 (moderate corrosivity), and C4 (very high corrosivity). Each category requires a specific approach to surface preparation and protective coating systems to ensure long-term durability of steel structures.

The level of threat is also defined in the standard, which is based on the likelihood of exposure to corrosive substances, such as water, salt, or other environmental factors. C1 environments are the most severe and require the most aggressive approach, while C4 environments are the least severe and require the least aggressive approach.

Understanding the corrosivity categories and the level of threat is crucial for professionals involved in corrosion protection. EN ISO 12944-2:2017 provides a comprehensive guide for protecting steel structures against corrosion in various environments, which can help ensure the longevity and durability of these structures.