Glossary

The rate of propagation of a flame through a gaseous fuel-and-oxidizer mixture relative to a fixed reference point.

Flaming combustion along a surface (not to be confused with the transfer of flame by air currents).

A numerical designation, applied to a building material, which is a comparative measure of the ability of the material to

A method of rendering inert thermoplastic objects receptive to inks, lacquers, paints, adhesives, etc., by bathing them in an open

A materials ability to burn or support combustion.

Subject to easy ignition and rapid flaming combustion.

Any liquid having a flash point below 140°F (60°C) and having an absolute vapor pressure not exceeding 40 lb per