Burning behavior test apparatus is used to determine the combustion severity of the material through deposition of the sample as a strip on non-porous plate and ignition trails are performed with the hot (1000°C) platinum wire which acts as an external source of ignition.
|
Type of Reaction |
Combustibility Class |
|
|
No spreading of fire |
No Ignition |
1 |
|
Brief ignition and rapid extinction |
2 |
|
|
Localised combustion or glowing with practically no spreading |
3 |
|
|
Fire spreads |
Glowing without sparks, (smoldering) or slow decomposition without flame |
4 |
|
Burning with flame or spark generation |
5 |
|
|
Very rapid combustion with flame propagation or rapid decomposition without flame |
6 |
|
Results:
Combustion probability of the material is identified by the visual observation and is classified into 6 classes.