2016DIN EN ISO 14122-3:2016 Safety of machinery - Permanent means of access to machinery - Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2016); German version EN ISO 14122-3:2016
2002DIN EN ISO 14122-3:2002 Safety of machinery - Permanent means of access to machinery - Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2001); German version EN ISO 14122-3:2001