Overpressure of 5 kPa to be considered for classifying premises by fire and explosion hazards

The historical records regarding classification of premises by explosion and fire hazards have been reviewed. The analysis of regulatory documents and scientific publications on this subject has been carried out. The clarification on selecting the explosion overpressure value as a criterion for classifying premises and production facilities as explosive and fire hazardous ones is provided. The synthesized information on types of industrial building damages and injuries to people due to explosion overpressure in emergencies is presented. Other fire and explosion hazards that can result in human death are described.