ISO 1328-1:1999 Cylindrical Gears - ISO System of Accuracy - Part 1: Definitions and Allowable Values of Deviations Relevant to Corresponding Flanks of Gear Teeth
2013ISO 1328-1:2013 Cylindrical gears.ISO system of flank tolerance classification.Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth
1999ISO 1328-1:1999 Cylindrical Gears - ISO System of Accuracy - Part 1: Definitions and Allowable Values of Deviations Relevant to Corresponding Flanks of Gear Teeth
1995ISO 1328-1:1995 Cylindrical gears - ISO system of accuracy - Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth