Surface active agents - Detergents - Determination of cationic-active matter content - Part 1: High-molecular-mass cationic-active matter (ISO/FDIS 2871-1:2009); German version FprEN ISO 2871-1:2009
Tissue paper and tissue products - Part 12: Determination of tensile strength of perforated lines - Calculation of perforation efficiency (ISO 12625-12:2010); German version EN ISO 12625-12:2010— 20 стр.