NF E90-301:1978 Mechanical vibration of large rotating machines with rotational frequencies from 10 S-1 to 200 S-1. Measurement and evaluation of vibration severity in situ.
1978NF E90-301:1978 Mechanical vibration of large rotating machines with rotational frequencies from 10 S-1 to 200 S-1. Measurement and evaluation of vibration severity in situ.