This standard applies to the classification and labeling of flammable gases. The current version is an update of its initial one published on 12 Oct 2006, based on Globally Harmonized System of Classification and Labeling of Chemicals, ST/SG/AC. 10/31/Rev.2 (GHS Rev.2 released in 2007).

A flammable gas is a gas having a flammable range with air at 20℃ and a standard pressure of 101.3 kPa.