Historical
DIN EN ISO 5402-1:2017
Leather - Determination of flex resistance - Part 1: Flexometer method (ISO 5402-1:2017); German version EN ISO 5402-1:2017
This document specifies a method for determining the wet or dry flex resistance of leather and finishes applied to leather. It is applicable to all types of flexible leather below 3,0 mm in thickness.
Deutsches Institut für Normung [din]