Vapor 12 : Chemistry and Chemical Disasters. The gas phase of a substance, particularly of those that are normally liquids or solids at ordinary temperatures. See also: Gas
NFPA 326 Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair, 2005 ed. https://www.nfpa.org/assets/files/AboutTheCodes/32 6/326-F2009-ROC.pdf, (Std: Safeguarding of Tnk and Cont for Entry, Cleaning, or Repr - Amer) {298 NFC}
Ingenieurbro Frank Markmann, Fire, Arson & Explosion Investigation in Germany and Europe, Fire Investigators Dictionary (The English definitions 1995 Edition of NFPA 921 Guide for Fire and Explosion Investigation), Wald, Germany (Revised 2008), http://www.fmfire.de/fidicteg.html, (FrInv - Brit) {94}