EN ISO 20816-3
This standard gives criteria for assessing vibration levels when measurements are made in situ. The specified criteria apply to machines that have a power above 15 kW and an operating speed between 120 and 15,000.
EN ISO 14694
This International Standard provides specifications for vibration limits and fan balance for all alpices except those fans designed exclusively for air circulation. It is limited to fans of all types, installed with a power of less than 300kW. For fans with higher power, the applicable limits are set in ISO 10816-3.