Fire Propagation Index Testing Equipment for Laminated FoilBS476-6 FPT.pdf Introduction:
BS 476-6 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.
To assess the flame propagation properties of the material to be
tested in BS476-6, thermocouple continuous recording chimney
temperature and room temperature difference, and compared the
results with the calibration curve, calibration curve based on the
provisions of the density of asbestos - cement slab in the same
measured way.
Comparing the temperature difference value of two curves which
measured at the same time. In the first three minutes of the test,
take the temperature difference value every 30 seconds, in the
following 4-10 minutes, take the temperature difference value every
one minute. In the last 11-20 minutes, take the temperature
difference value every two minutes. The flame spread index of these
three periods are calculated according to formula.
I is the value of sum of the three periods flame spread index. The
higher of I value, the lower the material flame retardant, 0 grade
material I≤12. Features: - The Fire Propagation Index Testing Equipment adopts 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;
Parameters: No. | Item Name | FPT Laminated Foil Fire Propagation Index Testing Equipment | 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 | AC 220V, 50/60Hz, 5A | 4 | Ambient temperature | 10 ~ 35 Centigrade | 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 |
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