NBN EN 13811:2003

This EN specifies minimum thickness requirements for three classes of zinc coating applied to ferrous products by the sherardizing process for the purpose of protection against corrosion and abrasion. It also specifies minimum requirements for the zinc dust to be used during the sherardizing process. This standard does not specify any requirements for the surface condition (finish or roughness) of the basis material before sherardizing. After-treatments or overcoating of sherardized articles is not covered by this standard.