BS EN ISO 11806-1. Agricultural and forestry machinery. Safety requirements and testing for portable, hand-held, powered brush-cutters and grass-trimmers. Part 1. Machines fitted with an integral combustion engine|Machine guards, Technical documents, Internal combustion engines, Instructions for use, Starters, Mechanical testing, Agricultural equipment, Exhaust gases, Hand tools, Marking, Portable, Vibration hazards, Equipment safety, Safety devices, Noise (environmental), Brush cutters, Design, Safety measures, Forestry equipment, Grass trimmers, Balancing, Hazards