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BS476-6 Construction Materials Flame Propagation Index Testing Equipment

Categories Building Materials Testing Equipment
Brand Name: AI
Model Number: FPT
Certification: ISO
Place of Origin: China
MOQ: 1 Set Flame Propagation Index Testing Equipment
Price: Negotiable
Payment Terms: T/T, Western Union, L/C, MoneyGram
Supply Ability: 100 sets per month
Delivery Time: 40 days
Packaging Details: Flame Propagation Index Testing Equipment BS476-6 packed with standard plywood case
Product name: Building Materials Flame Propagation Index Tester
Application: Fire tests on building materials and structures - Part 6: Method of test for fire propagation for products
Standard: BS476-6, BS476 Part 6
Color: White
OEM service: Available
Apparatus Dimension: 400mm (W) x 600mm x (H) x 300mm (D)
Control module dimension: 400mm (W) x 500mm x (H) x 400mm (D)
Weight: 46kg
Warranty: One Year
Power supply: 220V, 50Hz or as requested
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BS476-6 Construction Materials Flame Propagation Index Testing Equipment

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.


Main features:

1.The flame propagation index testing equipment adopts stainless steel support frame and Calcium silicate board combustion chamber.
2.Three kinds of sample holders for different thickness of the specimens.
3.Low reflective black finished mild steel Chimney and Cowl assembly complete with thermocouple mounting points.
4.Compliant stainless steel gas burner is supplied with flame propagation index testing equipment.
5.Two K type mineral insulated thermocouples complete with ceramic insulators.
6.Two pencil type heaters with 1000w installed in combustion chamber.
7.Control gas instrumentation including electronic gas on/off valve, flow regulating valve, flow meter and manometer.
8.Intelligent single phase power controller with feedback loop for accurate control of electric heating elements
9.DAQ record automatically the mV output from the thermocouples of the flue gases throughout the duration of the test.
10.According to the test time, The flame propagation index testing equipment can automatically adjust the output power.
Data acquisition system
1.Prompted software interface
2.Data recording and display of cowl temperature against time
3.Data recording and display of ambient temperature against time
4.Display of power value in kW
5.Calibration routine
6.Calculation of output rise and calibration value
Installation Requirement
1.Electrical: 230 volts Nominal 10 Amps
2.Ambient Temperature: Operating 10°C to 35°C
3.Gas Supplies: The gas supply specified in the Standard
is Standard test gas G112, as specified in BS 4947.
4.Flow: Gas flow for burner adjustable from 0 to 5 nl/min
5.Pressure: 1kPa
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