One part of managing flammable liquids is minimizing fuel load in the event there is a fire. Both state codes and OSHA utilize what is called “maximum allowable quantity per control area“. This practice is based on the “degree of hazard” or as OSHA calls them today “Hazard Category” of the flammable liquid or gas being stored/handled/processed. OSHA’s 1910.106 standard is badly outdated to provide us with decent guidance so I always suggest we use the International Fire Code (IFC) which is reviewed/revised every three years. But we need to establish the bare minimum first and this is what 1910.106 states when the flammable liquids are used/handled/stored in an “industrial plant”:
NOTE: the highlighted parts are how OSHA enforces their “maximum allowable quantity per control area“.