Combustible Material 02 : A generic term used to describe a flammable gas, flammable liquid produced vapor, or combustible liquid produced vapor mixed with air that may burn or explode
NFPA 497 Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, 2008 ed. (Recmm Prac: Class of Flamm Liqd, Gas or Vpr and of Haz (Class) Locations for Elctr Instll in Chem Procss Areas - Amer) {323 NFC}