In order to study the combustion property of fibers comprehensively based on the intrinsic property, and to quickly and scientifically evaluate fibers' combustion property and confirm fiber blending scheme as well, a method for evaluate the burning property of fibers by cone calorimeter has been established. The factors that affected the results repeatability have been analyzed. Based on a series of experiments, the testing parameters has been optimized, such as, heat flux, grid covering rate, fiber sample grammage, etc, and the method is verified by further experiments. The results show that when the heat flux is 75 kW/m², grid covering rate is 25%, fiber sample grammage is 600 g/m², and the result data have favourable repeatability with the minimum CV for PHRR. Furthermore, the verification experiments show that the test method has extensive adaptability and good sensitivity.
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