ISO 22650:2018 specifies a method for the determination of the heel attachment of footwear. It applies to woman's medium and high heeled footwear.
This test method measures three related wear properties:
- the rigidity of the shoe backpart during normal walking,
- the amount of permanent deformation of the backpart caused by a fairly large force applied to the heel in a backward direction,
- the force required to detach the heel.