ISO 17235:2011 (IULTCS/IUP 36)
Leather -- Physical and mechanical tests -- Determination of softness
This standard has been revised by ISO 17235:2015.
ISO 17235:2011 specifies a non-destructive method for determining the softness of a leather. It is applicable to all non-rigid leathers, e.g. shoe-upper leather, upholstery leather, leather-goods leather and apparel leather