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Critical Radiant Flux is the main parameter of the fire risk for flooring materials, it reflects the burning and spreading ability of flooring material specimens under external heat radiation conditions. It is an important index of combustion classification for building products.
According to ISO9239-1,2 and GB/T 11785-2005 requirements, the Flooring Radiant Panel Test Apparatus is measuring the critical radiation of combustion floor coverings, through the radiation environment of the test chamber. It can also be used to measure the critical radiation of the cellulose insulation floor material.
The specimen is located at the down horizon of 30 degrees sloped gas radiation panel per horizon surface.
Pilot flame as an ignition resource puts a part edge of the specimen on the high-temperature side.
This equipment records ignition time by spark, and moving time by which flames horizontally pass by a specimen of length.
Application:
1. Building Materials
2. Rail
3. Automotive Interior
4. Other
Standard:
>>> ISO 9239-1: Reaction to Fire Tests for Flooring- Part 1: Determination of Burning Behavior Using a Radiant Source
>>> ISO 9239-2: Reaction to Fire Tests for Flooring- Part 2: Determination of Flame Spread at a Hat Flux Level of 25kW/m2
>>> ASTM E 648: Standard Test Method for Critical Radiant Flux of Floor-Covering System Using a Radiant Heat Energy Source
>>> ASTM E 970: Standard Test Method for Critical Radiant Flux of Exposed at Attic Flooring Insulation Using a Radiant Heat Energy Source
>>> NFP A 253: Standard Method of Test for Critical Radiant Flux of Floor Covering System Using a Radiant Heat Energy Source (National Fire Code. Vol.6)
>>> KS F ISO 9239- 1: Reaction to Fire Tests for Flooring- Part 1: Determination of Burning Behavior Using a Radiant Source
>>> KS F ISO 9239-2: Reaction to Fire Tests for Flooring- Part 2: Determination of Flame Spread at a Hat Flux Level of 25kW/m2
Main Features:
1. All structural components are made of stainless steel, beautiful appearance and corrosion resistance.
2. The test chamber is made of the panel (calcium + silicate ) 13±1 mm in thickness and 650 kg/m3 of nominal density.
3. Air pass dimension between the test chamber and test specimen holder is produced by (0.23±0.03) m3 at both beside of the specimen fairly.
4. The calorimeter is imported from the United States, range 50kW/m2.
5. Radiant chamber had a stop of 30±1degree per horizon panel and can be resisted up to 900-degree centigrade. It also should be included in the safety-blocking function.
6. The radiation source is a porous ceramic heat radiating plate of 300mm*450mm and tilted 30 °.
7. The pilot burner should be stationed equally as 0.7mm diameter and 19/EA produced a slop of 60 degrees per center line bottom.
8. The air velocity of the exhaust stack should be attached to an exhauster as 2.5±0.2 m/s.
9. It should be used a radiation pyrometer which can be monitored 250mm diameter from about 1.4 meters and has ±5 degree centigrade sod ml accessory with 480ºC to 530ºC (black body temperature) range for adjustment of the surface quality of heat of radiant panel.
10. It can be measured that flow within tolerance from radiant heat panel to 110mm to 910mm at 100mm intervals.
11. It can be adjusted a flame length of 60mm to 120mm on a Pilot burner flame.
12. It can b adjust the limited temperature (900ºC) of the backside panel according to the airflow condition of the radiation heat panel.
13. Inlet flows control valve, precise control of propane flow.
Specification:
1. Steel frame chamber, Dimension:1,400mm(W)×500mm(D)×2,200mm(H)
2. Console Size: 600mm(W)×750mm(D)×1600mm(H)
3. Power: AC 220V, 50/60Hz, 20A
4. Weight: about 300kg
5. Instructions: Provide
6. Exhaust:30~85m3/min
7. Calcium silicate insulation board
8. Observation window
9. A sliding platform for loading the specimen
10. Auto-moving ignition burner
11. Scale for check flame spread
12. K-type thermocouples: Range, Ambient about 1500 degree centigrade
13. The stainless steel sample holder
14. Dummy calibration panel holder for measuring heat fluxmeter
15. Pyrometer for measuring radiant panel temperature
16. Utilities: Bottled propane gas, Air compressor (5HP)
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