Burning Behaviour Test
It determines if, and to what degree, a fire will propagate in a dust-layer once started by an outside source. The result is either given by a “combustion number” or the rate of propagation of the fire.
The test equipment comprises an electrically heated glowing platinum wire at approx. 1000 °C (diameter: 1 mm, length 86 mm, current 30 A).

Specifications
- 1 x platinum hot coil current control unit
- 1 x heater power handset (pre-wired into the control unit)
- 1 x insulating block,1 x glass tube,1 x 100 mm length of platinum wire
- 100 - 200 V / 220 - 240 V - 6 A input
- Fine coil output current control (optimum 29 to 31 A. Control derived from low voltage d.c output)
What data we get?
Observations |
Class at RT |
|
No Spreading of fire |
No Ignition |
1 |
Brief ignition and rapid extinction |
2 |
|
Localized combustion |
3 |
|
Fire Spreads |
Glowing without sparks |
4 |
Slow quite burning with flames |
4 |
|
Flash fire and violent spreading |
6 |