ISO 5402-1:2011 (IULTCS/IUP 20-1)
Leather -- Determination of flex resistance -- Part 1: Flexometer method
This standard has been revised by ISO 5402-1:2017
ISO 5402-1:2011 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 which are less than 3,0 mm thick.