NF ISO 9523, S52-732 (01/2024)

This document specifies the dimensions and characteristics of the contact zone, as well as the requirements, test methods and marking of rigid-soled ski boots used with current ski touring binding systems, located at front and heel of the shoe and whose proper release depends on the dimensions and shape of the contact zones. This document does not necessarily apply to ski touring boots whose operation is independent of the shape of the sole with certain binding systems. This document applies to ski boots of size 15.0 and above according to the Mondopoint system (see Appendix A). It applies to rigid ski touring boots. It does not concern shoes with a softer shell such as Telemark shoes, because their shell does not offer the stability necessary to generate action within the trigger systems.
(Automatic translation from French)