ISO 9239-1 ASTM E648 Fire Tester Critical Radiant Flux with a Radiant Heat Energy Source
FLOORING RADIANT PANEL TEST (CRITICAL RADIANT FLUX), ASTM E 648, NFPA 253, FED. STD. NO. 372, NBSIR 75-950: The Floor Radiant Panel apparatus involves a horizontally mounted floor covering test sample which receives radiant energy from a gas-air fueled radiant panel mounted above one end of the sample and inclined at an angle of 30o. The radiant panel generates a radiant flux profile along the length of the sample ranging from a maximum of 1.1 W/cm2 immediately under the panel to approximately 0.1 W/cm2 at the end of the test sample. A gas fired pilot burner is used to initiate the ignition in the sample. The distance the flooring system burns to extinguishment is converted to watts per square centimeter (W/cm2) and is reported as critical radiant flux (CRF). This is the minimum radiant energy a fire needs to sustain flame propagation in the flooring system. In this test, a higher number indicates a more flame-resistant system; i.e., 0.45 W/cm2 is better than 0.22 W/ cm2.
GB / T11785 "flooring combustion performance measurement - a radiant heat source” ISO9239-1:2002 “flooring combustion performance Part 1-the combustion performance is determined with radiant heat resource” ASTM E648:Standard Test Method for Critical Radiant Flux of Floor-covering Systems Using a Radiant Heat ASTM E970:Standard Test Method for Critical Radiant Flux of Exposed Attic Floor Insulation Using a Radiant Heat Energy Source NFPA 253:Standard Test Method for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source
1. Power supply:AC 220V,50HZ; 2. Total power:2KW; 3. Timer: timing accuracy < 1s/h; 4. Heat flux measurement range: (0-15) Kw / m2; 5. Heat flux meter accuracy: ± 0.2Kw / m2; 6. Heat flux meter accuracy: <± 3%; 7. Thermal radiation temperature measurement range: 400-600 ℃, accuracy ± 0.5 ℃; 8. Blackbody temperature error: ± 5 ℃; 9. Exhaust speed: (2.5 ± 0.2) m / s; 10. Exhaust capacity: (39-85) m3 / min; 11. Porous refractory radiant panel size: 300mm × 450mm, about 900 ℃ high temperature capability; 12. Thermocouple: K diameter stainless steel sheathed thermocouple of 3.2mm; 13. Heat flux distribution requirements: at 200mm : (9.1 ± 0.4) KW / m2; at 400mm : (5.0 ± 0.4) KW / m2; at 600mm : (2.4 ± 0.2) KW / m2; 14. Combustion gases: propane (Customer); 15. Combustion gas flow rate: (0.026 ± 0.002) L / S; 16. Combustion burner: outer diameter ¢ 10mm inner diameter ¢ 6mm, burner tube hit 35 ¢ 0.7mm hole; 17. Flame height: 60 ~ 120mm adjustable; 18. Ignition system: high-voltage electronic ignition; 19. Powerful exhaust system: This machine is equipped with a powerful exhaust fan, when the test is completed, the system will start the exhaust fan exhaust outside.
1. The apparatus is made of combustion chamber and control box; 2. Combustion chamber size: L1420 * W1200 * H2300 (mm); 3. Outline dimension:L2530*W1270*H2700mm(including electric cabinet); 4. Control box / combustion chamber material: high quality (t = 1.2mm) 304 is stainless steel, CNC machining, circular nice shape; 5. Blowtorch: made by our company, 304 stainless steel material, in full compliance with GB / T11785 standards; 6. Other mechanical parts are made of 304 stainless steel or A3 material thicker plating, anti-corrosion and rust.