Walking aids manipulated by both arms - Requirements and test methods - Part 1: Walking frames (ISO 11199-1:1999); German version EN ISO 11199-1:1999— 13 стр.
Walking aids manipulated by both arms - Requirements and test methods - Part 2: Rollators (ISO 11199-2:2005); German version EN ISO 11199-2:2005— 29 стр.