BS ISO 7867-1. Metric series for agricultural, forestry machines and construction tyres. Part 1. Tyre designation, dimensions and marking, and tyre/rim coordination— 54 стр.
BS ISO 4251-1. Code designated diagonal tyres (ply rating marked series) for agricultural tractors, trailers and machines. Part 1. Tyre designation and dimensions, and approved rim contours— 27 стр.