ISO 2252:1983

Defines the requirements to ensure that a sufficient degree of flexibility is retained to allow for comfort in wear. The tests refer to the hardness of soling and heel, the flexibility of the upper part of boots and marking. The Annex contains details to the apparatus, test pieces, procedure and the expression of the results. The suggestion of the apparatus is shown in two figures. Replaces the second edition (ISO 2252-1976).