DIN ISO 10816-21 E:2014-06 Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 21: Horizontal axis wind turbines with gearbox
2015DIN ISO 10816-21:2015-08 Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 21: Horizontal axis wind turbines with gearbox (ISO 10816-21:2015)
2015DIN ISO 10816-21:2015 Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 21: Horizontal axis wind turbines with gearbox (ISO 10816-21:2015)
1970DIN ISO 10816-21 E:2014-06 Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 21: Horizontal axis wind turbines with gearbox