Gas 06 : A gas is a material without a specific shape or volume. Gases tend to occupy an entire space uniformly at normal room pressure and temperature. The terms vapour and fume are sometimes confused with gas
Canadian Centre for Occupational Health and Safety CCOHS, Material Safety Data Sheet MSDS - An Explanation of Common Terms, Ontario, Canada 1988 (Revised 1996). http://ccinfoweb.ccohs.ca/help/msds/msdstermse.htm l, (Common MSDS Terms Used in Occupn Hlth and Sfty - Canad) {20}