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EN ISO 5660-1:2002 Heat release rate
EN ISO 5660-1 Reaction to fire tests-Heat release, smoke production and mass loss rate-Part 1: Heat release rate (cone calorimeter method)
The test method is similar with GB/T 16172:2007.
The Cone Calorimeter test is at present the most advanced method for assessing materials reaction to fire. The method follows the procedure given in international standard EN ISO 5660-1:2002. Additionally, measurements of smoke production and production of toxic gases can be performed during the test.
The EN ISO 5660-1 test gives a possibility to evaluate
Ignitability
Combustibility
Smoke production
Production of toxic gases
EN ISO 5660-1 Test method
The surface of the test specimen is exposed to a constant level of heat irradiance, within the range 0-100 kW/m2, from a conical heater. Volatile gases from the heated specimen are ignited by an electrical spark igniter. Combustion gases are collected by an exhaust hood for further analysis. This gas analysis makes it possible to calculate heat release rate and to assess production of toxic gases from the specimen. Smoke production is assessed by measuring attenuation of a laser beam by smoke in the exhaust duct. The attenuation is related to volume flow, resulting in a measure of smoke density called smoke extinction area [m2/s].
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