DIN EN ISO 11680-2-2012 林业机械.动力杆式修枝锯的安全要求和试验.第2部分:携背负式杆式修枝锯
Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 2: Machines for use with back-pack power source (ISO 11680-2:2011); German version EN ISO 11680-2:2011