DIN EN 1985:1999-02

The document specifies the requirements and test methods for walking aids manipulated by one arm (walking aids used singly or in pairs, each manipulated by one of the arms, possibly in combination with the upper body) and walking aids manipulated by both arms (walking aids used singly, manipulated by both arms, possibly in combination with the upper body), as covered by the subclasses 1203 and 1206 in EN ISO 9999:1998.