DIN EN ISO 11681-1:2019 林業機械 便攜式鏈鋸安全要求和測試 第1部分:林業用鏈鋸(ISO/DIS 11681-1:2019)
Machinery for forestry - Portable chain-saw safety requirements and testing - Part 1: Chain-saws for forest service (ISO/DIS 11681-1:2019); German and English version prEN ISO 11681-1:2019