Combustibility Index

Definition:

The Combustibility Index (CI) characterizes the fire and combustion behavior of a material.

Testing Method:

according to VDI 2263-1

Type of Reaction		CI	Examples
	Does not ignite.	1	Common salt
The fire does not spread after ignition.	After ignition the fire dies out rapidly	2	Zinc stearate
	Local burning or glowing showing very little enddency to spread.	3	Sodium chloro acetate
	Persistent glopwing without the emission of sparks or slow decomposition without a flame	4	H-acid
Spreading of the fire	Burns like a firework or slow quiet burning with a flame	5	Sulfur, Ammonium dichromat
.	Burns very rapidly with a flame or there is a rapid decomposition without flame	6	Black powder (gun-powder)

Safety-relevant meaning:

The Combustibility Index is a criterion for the distribution of a fire after local effects of a sufficiently strong ignition source. Thus it is

an important characteristic for the behaviour of solids in the case of fire and for the correspondig fire-fighting actions as well as

the fire protection concept based on it.