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Lesson Learned: CO2 Leak at McDonald’s; Harmful to Employee and Responders

 

 

 

 
Some facts about CO2:
  • Typically found in a gaseous state
  • Colorless, Odorless, Tasteless
  • Pressurized into liquid state
  • DOT Placard: Green, category 2, non-flammable
  • NFPA 704 Marking System: 3 Health, 0 Fire, 0 Reactivity, 0 Special Hazard
  • Expansion ratio nearly 3000 to 1
  • Displaces O2, asphyxiant
  • Cryogenic