Wilhelm Jost Institut Förderverein e.V.

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.


 

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