You respond to a 2AM liquefied compressed gas transportation accident which is leaking from a 5lb (2.3kg) steel cylinder. Chemical commodity on shipping paper is 5 lb RQ, compressed gas, flammable, toxic, n.o.s. (poison - inhalation hazard, zone B).
1. How would you identify this?
2. What is the radius of the initial isolation zone
3. What is the magnitude of each side of the protective-action zone associated with the release of this substance?
4. How would you respond?
5. What type of PPE is required and/or recommended?