IMPORTANT — This International Standard is suitable for the assessment of the conformity ofprosthetic ankle-foot devices and foot units with the strength requirements specified in 4.4 ofISO 22523:2006 (see NOTE 1). Prosthetic ankle-foot devices and foot units on the market, which have demonstrated their compliance with the strength requirements specified in 4.4 of EN 12523:1999 through submission to the relevant tests of ISO 10328:1996, need not be retested to this International Standard.WARNING — This International Standard is not suitable to serve as a guide for the selection of aspecific ankle-foot device or foot unit in the prescription of an individual