Paints and varnishes - Determination of mar resistance - Part 2: Method using a pointed stylus (ISO 12137-2:1997); German version EN ISO 12137-2:2006— 12 стр.
Paints and varnishes - Determination of scratch resistance - Part 2: Method using a pointed stylus (ISO/DIS 12137-2:2009); German version prEN ISO 12137-2:2009
Paints and varnishes - Determination of scratch resistance - Part 2: Variable-loading method (ISO 1518-2:2011); German version EN ISO 1518-2:2011— 14 стр.