This European Standard defines the measurement conditions for surface roughness parameters of metallic flat products, both uncoated (cold and hot rolled pickled steel) and coated with metallic coatings (e.g. zinc, aluminium, tin, chromium) [see subclause 3.1].
DS/EN 10049:2006 history
2006DS/EN 10049:2006 Measurement of roughness average Ra and peak count RPc on metallic flat products