Flame propagation

Spread of a flame front on a specimen under defined conditions.

Flame spread

Propagation of a flame front.

(See also: Flame propagation)

Flammability

Ability of a material or product to burn with a flame under specified conditions.

Flammable

Capable of flaming combustion under specified conditions.

Flash-point

Minimum temperature at which, under specified test conditions, a liquid gives off sufficient flammable gas to produce a flash on application of an ignition source.