Leather - Physical and mechanical tests; Determination of resistance to grain cracking and grain crack index (ISO 3378:2002); German version EN ISO 3378:2002— 11 стр.
Testing of plastics films and coated textile fabrics, manufactured using plastics; determination of stiffness in bending, method according to Ohlsen— 3 стр.
Leather - Physical and mechanical tests; Determination of resistance to grain cracking and grain crack index (ISO 3378:2002); German version EN ISO 3378:2002— 11 стр.