EVS-EN ISO 12944-4:2018

This document covers the following types of surfaces of steel structures consisting of carbon or low-alloy steel, and their preparation:
—  uncoated surfaces;
—  surfaces thermally sprayed with zinc, aluminium or their alloys;
—  hot-dip-galvanized surfaces;
—  zinc-electroplated surfaces;
—  sherardized surfaces;
—  surfaces painted with prefabrication primer;
—  other painted surfaces.
This document defines a number of surface preparation grades but does not specify any requirements for the condition of the substrate prior to surface preparation.
Highly polished surfaces and work-hardened surfaces are not covered by this document.