User:Physchim62/Sandbox

The butane in this cigarette lighter is considered to be a liquefied gas under the GHS, and not a liquid. Cigarette lighters containing flammable gases are transported under UN class 2.1, UN number 1057.

http://www.ca5.uscourts.gov/opinions%5Cpub%5C93/93-02564.CV0.wpd.pdf