While MIL-STD-167-1 covers Types I and II, handles the following complex categories: Type III: Torsional Vibration
This article provides everything you need: a detailed breakdown of the standard, practical advice on obtaining a legitimate copy of the MIL-STD-167-2A PDF, and tips for compliance. mil-std-167-2a pdf
The standard provides a uniform approach to evaluate how equipment performs when subjected to various types of vibrations encountered in a naval environment: Internally Excited Vibration: While MIL-STD-167-1 covers Types I and II, handles