2015DIN EN ISO 5402-2:2015-12 Leather - Determination of flex resistance - Part 2: Vamp flex method (ISO 5402-2:2015); German version EN ISO 5402-2:2015
2015DIN EN ISO 5402-2:2015 Leather - Determination of flex resistance - Part 2: Vamp flex method (ISO 5402-2:2015); German version EN ISO 5402-2:2015
1970DIN EN ISO 5402-2 E:2013-08 Determination of the bending resistance of leather Part 2: Upper bending method (draft)