2018DIN ISO 1328-1:2018 Cylindrical gears - ISO system of flank tolerance classification - Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth (ISO 1328-1:2013)
2014DIN 21773:2014-08 Gears - Cylindrical involute gears and gear pairs - Inspection dimensions of tooth thickness
2014DIN 21773:2014 Gears - Cylindrical involute gears and gear pairs - Inspection dimensions of tooth thickness