ISO 4251-1:2005/Amd 1:2012 Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 1: Tyre designation and dimensions, and approved rim contours; Amendment 1
2019ISO 4251-1:2019 Code designated diagonal tyres (ply rating marked series) for agricultural tractors, trailers and machines — Part 1: Tyre designation and dimensions, and approved rim contours
2017ISO 4251-1:2017 Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 1: Tyre designation and dimensions, and approved rim contours
2012ISO 4251-1:2005/Amd 1:2012 Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 1: Tyre designation and dimensions, and approved rim contours; Amendment 1
2005ISO 4251-1:2005 Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 1: Tyre designation and dimensions, and approved rim contours
1998ISO 4251-1:1998 Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 1: Tyre designation and dimensions, and approved rim contours
1992ISO 4251-1:1992 Tyres (ply rating marked series) and rims for agricultural tractors and machines; part 1: tyre designation and dimensions
1988ISO 4251-1:1988 Tyres and rims (existing series) for agricultural tractors and machines — Part 1: Tyre designation and dimensions