The standard specifies a method for testing an unweathered onecoat or multicoat paint regarding to recoatability with a coating material for e. g. reconditioning areas damaged during or after mounting.
DIN 53221:2005 history
2014DIN EN ISO 16927:2014 Paints and varnishes - Determination of the overcoatability and recoatability of a coating (ISO 16927:2014); German version EN ISO 16927:2014
2005DIN 53221:2005 Paints and varnishes - Testing of recoatability of a coating
1970DIN 53221:1973 Paints and varnishes - Testing of recoatability of a coating