Flooring Radiant Panel
Compliance
ISO 9239-1, ASTM E648, NFPA 253
The Flooring Radiant Panel is used for determining the critical radiant flux of horizontally-mounted floor covering systems, which are exposed to a flaming ignition source in a specific radiant heat environment.
The test specimen is placed in a horizontal position below a gas-flued radiant panel inclined at 30° where it is exposed to a defined heat flux. A pilot flame is applied to the hotter end of the specimen. During the test, any flame front which develops is noted and a record is made of the progression of the flame front horizontally along the length of the specimen in terms of the time it takes to spread to defined distances. Also, the smoke development during the test is recorded as the light transmission in the exhaust stack.
The European Construction Products Regulation requires that all European Member states use this test method as part of the requirements needed to evaluate reaction to fire performance for all flooring products, e.g. textile carpet, cork, wood, rubber, and plastics coverings as well as coatings.
Results obtained by this method reflect the performance of the flooring, including any substrate if used. Modifications of the backing, bonding to a substrate, underlay or other changes of the flooring may affect test results.
The following date will be reported by the Flooring Radiant Panel test:
Critical heat flux, CHF and/or HF-30, in kw/m2.
Flame spread distance, in mm.
Integral of smoke obscuration, in %xmin.
ISO 9239-1 Test
ISO 9239-1 Calibration
ISO 9239-1 Test Software
Flooring Radiant Panel consists of
Stainless steel test chamber with a front opening door for easy cleaning and replacement of the specimen. The test chamber consists of a 13mm-thick calcium silicate panel and a fireproof glass of 110mm x 1100mm in size, which is mounted in front of the chamber so that the entire length of the specimen can be observed during the test.
The outside of the test chamber is fitted with a thick stainless steel sheet. Below the observation window, a tightly closing door is fitted, which allows the specimen platform to be moved in and out. From the inner edge of the test fixture, steel rulers with 50 mm and 10 mm scale intervals should be installed on each side of the test piece.
The test platform is made up of a sliding platform, which can be tripped into the centre of the chamber, with iron high temperature resistant rails to ensure long life. The total air circulation area between the test chamber and the specimen holder should be 0.23 m2, equally distributed on both sides of the long side of the specimen.
The sample holder shall be made of 2.0mm thick heat resistant L-type stainless steel, with the specimen passing through an opening of 200mm x 1015mm and the specimen holder fixed to the sliding steel platform with two bolts at each end.
The radiation heat source shall be a porous ceramic refractory panel mounted in a metal frame with a radiating surface of 300mm x 450mm. The radiation heat panel is placed on the specimen holder with the long side at (30±1)° from the horizontal The panel shall be able to withstand temperatures in excess of 900°C. The surface of the radiation source can form a stable luminous flame-free radiation source.
T-shaped stainless steel porous burner with an inner diameter of 6mm and an outer diameter of 10mm, with 19 holes of 0.7mm diameter evenly distributed on the centre line and 16 holes of 0.7mm diameter distributed 60° below the centre line. A cylinder push mode, which automatically applies the flame to the specimen at a programmed time.
Anemometer with a range of 0-10m/s and an accuracy of ±0.1m/s for measuring the velocity of the air in the exhaust chimney. Installed in the exhaust chimney, its measurement point coincides with the centre line of the exhaust chimney (250±10)mm above the exhaust chimney.
Adjustment of the flow rate by means of an imported mass flow controller, digital panel display.
Frequency converter to regulate the blower air volume, equipped with a tempering valve to ensure a tempering-free test, with its own blower to provide an air gas source, mixing the test gas through a venturi mixture.
Pyrometer (infrared radiometer) with a measuring range of 0-800°C (black body temperature), mounted at a distance of approximately 1.4 m from the radiating plate for measuring a circular area of 250 mm diameter in the center of the radiating plate. The pyrometer is mounted on a universal foundation for easy adjustment to the appropriate angle.
Imported water-cooled heat flow meter with a measurement range of 0-20 kW/m2, equipped with a water-cooling unit, no external water required, and no maintenance required.
Equipped with a standard multi-hole calibration plate, 250mm wide and 1050mm long, with 26mm diameter holes concentrated on the centre line and at 110mm, 210mm to 910mm positions along the centre line.
Calibration of the heat flux meter is in mobile lifting mode, allowing the user to move the meter and conveniently calibrate the radiative plate heat flux, while the test software plots the standard heat flux curve.
Automatic timing device, accurate to the second, with an error of less than 1 second for 1 hour.
Neutral filter for calibration of the smoke density system with an optical density range of 0.05 to 2.0 (light transmission of 89% to 1%)
One K-type insulated thermocouple installed in the chimney thermocouple and box, with a range of 0-1000°C; computer software to display real-time temperature
Equipped with a stainless steel collection hood on the top of the combustion test chamber.
A light system containing a light source of 2900±100K color temperature incandescent lamp and a silicon photodiode as the light source receiver.
A shutter for the optical system, which is placed at the front of the silicon photodiode, can be opened and closed automatically by the computer test software for 0% and 100% calibration.
The data Acquisition System software, which displays the heat radiation flux value, smoke density curve, transmittance curve, wind speed, and other test related information.
Equipped with a footswitch that allows the user to obtain the flame spread time to the test distance according to the flame spread distance, while the computer records itself.
Equipped with an industrial 15" touch screen computer, the user can monitor the whole combustion test process through the test software.