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See Chinese contents: GB/T 30790.2-2014 GB/T 30790.2-2014: Paints and varnishes -- Corrosion protection of steel structures by protective paint systems -- Part 2: Classification of environments
This Part of GB/T 30790 deals with the classification of the principal environments to which steel structures are exposed, and the corrosivity of these environments. The corrosion stresses associated with a particular environment or corrosivity category represent one essential parameter governing the selection of protective paint systems. This Part does not deal with the classification of those environments that consist of special atmospheres.
