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BS476-4 Small Flame Ignition Vertical Tube Furnace is a test method of measuring the flame propagation properties of materials, primarily for fire protection performance evaluation of the walls and ceilings, measurement results are expressed as an index of flame propagation.
During the test, the specimen is exposed to the tubular torch, heat release of the lamp is 530J / S. 2 minutes and 45 seconds later, the two electric heater was adjusted to 1800 watts in total, 5 minutes after starting the test, reduced the power to 1500 watts, keep the power not changed until finishing the experiment, the total test time is 20 minutes.
BS 476 Part 6 A1: 2009
Building Materials;
Rail;
Others;
Stainless steel cabinet support frame;
Calcium silicate board combustor;
All the three sample holders are stainless steel parcel;
2 sets 1000W quartz radiation device, to provide thermal radiation to samples;
T-type burner supply flame combustion to the sample;
Thermocouple continuous recording temperature and room temperature difference value in chimney;
The power output is automatically controlled according to the test of time;
The computer automatically processes the data, and print test report;
| No. | Item NameISO1182 BS476-4 Small Flame Ignition Vertical Tube Furnace | |
| 1 | Dimension | Apparatus: 400mm (W) x 600mm x (H) x 300mm (D) Control module: 400mm (W) x 500mm x (H) x 400mm (D) |
| 2 | Weight | 46kg |
| 3 | Power supply | 230 volts Nominal 10 Amps |
| 4 | Ambient temperature | Operating 10OC to 35OC |
| 5 | Gas supply | The gas supply specified in the Standard is Standard test gas G112, as specified in BS 4947. |
| 6 | Flow | Gas flow for burner adjustable from 0 to 5 nl/min |
| 7 | Pressure | 1kPa |
