Airbags and seatbelt pre-tensioners have "explosives" in them (they convert very rapidly into gas, but I'm not sure all of them always meet the usual standards

Airbags and seatbelt pre-tensioners have "explosives" in them (they convert very rapidly into gas, but I'm not sure all of them always meet the usual standards of explosives). The defective Tanaka airbags used ammonium nitrate, of Oklahoma City Bombing and Beirut port fame.