Explosion Dynamics Credit Hours: 4 Approximate reading time: 3 Hours Approximate online time: 1 Hour You Must Be Signed In To View This Program. Register Today NFPA Documents Disclaimer- NFPA and other resource editions cited within the CFITrainer.Net site were current as of the release of the respective modules. The field of fire investigation and its guiding documents are constantly evolving and it is incumbent upon the fire investigator to remain up to date with the guidance in the current editions of the documents referenced in all modules on CFITrainer.Net, regardless of which edition was used in the writing of the module. Program Abstract This module teaches the foundational knowledge of explosion dynamics, which is a necessary precursor to investigating an explosion scene. This foundational knowledge includes the types of explosions, proper terminology when classifying explosions and explosion damage, explosion effects, important factors in the causes of naturally-occurring explosions, and the characteristics of explosives.