This standard specifies the safety technical requirements for the design, manufacture and use of hay cutters. This standard applies to disc and barrel mowers.
GB 7681-2008 Referenced Document
GB 10395.1 Agricultural and forestry machinery.Safety.Part 1:General requirements*, 2009-09-30 Update
GB 10396 Tractors, machinery for agriculture and forestry, powered lawn and garden equipment.Safety signs and hazard pictorials.General principles
GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs*, 2011-01-10 Update
GB/T 3098.2 Mechanical properties of fasteners.Nuts*, 2015-12-10 Update
GB/T 9239.1 Mechanical vibration. Balance quality requirements for rotors in a constant(rigid) state. Part 1: Specification and verification of balance tolerances
GB 7681-2008 history
2008GB 7681-2008 Safety technical requirements for choppers
1987GB 7681-1987 Safety technical requirements for hay cutters