Introduction to SN EN ISO 12944-2:2018
Purpose and objectives
ISO 12944-2:2017 is a critical standard that addresses the classification of environments affecting steel structures, specifically focusing on their corrosion potential. The standard categorizes atmospheric corrosivity levels based on measurable mass loss from standard specimens, guiding users in evaluating the corrosive conditions that may impact protective coatings. By establishing a clear framework for understanding various environments, it aims to enhance the durability and lifespan of steel structures through informed selection of protective paint systems.
Scope: who must comply
This standard is essential for stakeholders in the Paint & Color Industries, including manufacturers, contractors, and engineers involved in the design and maintenance of steel structures. It is particularly relevant for those working on projects where structural integrity is crucial, such as bridges, buildings, and offshore installations. Compliance with ISO 12944-2:2017 ensures that these professionals can effectively assess and mitigate corrosion risks, thereby enhancing safety and performance in their projects.
How SN EN ISO 12944-2:2018 relates to other standards
ISO 12944-2:2017 is part of the larger ISO 12944 family, which provides comprehensive guidance on protective paint systems for steel structures. It complements ISO 12944-1, which covers general principles, and ISO 12944-3, which details requirements for protective paint systems. Together, these standards form a cohesive framework for addressing corrosion protection in various environments.
Revision history and current status
The current revision of this standard was published in 2017 by the International Organization for Standardization (ISO). The 2017 update introduced refinements in the classification of environments and clarified definitions related to corrosivity categories, reflecting advancements in research and practical applications in the field of corrosion protection. This ensures that stakeholders are equipped with the latest insights and methodologies for effective corrosion management in steel structures.
SN EN ISO 12944-2:2018
Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Teil 2: Einteilung der Umgebungsbedingungen (ISO 12944-2:2017)
Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 2: Classification of environments (ISO 12944-2:2017)
ISO 12944-2:2017 deals with the classification of the principal environments to which steel structures are exposed, and the corrosivity of these environments. ISO 12944-2:2017 - defines 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, and - gives 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.