Combustion properties (B1 level) after the start of combustible ignition within 20s, the flame did not reach the scale tip line, and does not allow the filter drip ignite ignition phenomenon began in the 20s, the flame tip does not meet the tick and dripping No paper was ignited combustion minimum remaining length, mm> 0 630 the average remaining length of combustion, mm 150 662 average smoke density, ℃ 200 82 smoke density grade (SDR) 75 74 Item Standard Index (X200) test results Appearance quality color uniform color through magazines without inclusions by shape smooth surface, visible flaw should not affect the use of compressive strength through, kpa 200 242 dimensional stability,% (70 ℃, 48h) 2.0 in the longitudinal direction: 0.1 width direction: 0.3 Thickness Directions: 0.3 Water absorption (volume fraction),% 1.5 0.4 moisture permeability coefficient, ng / (Pa.ms) 3.5 2.1 Thermal conductivity W / (mK) average temperature: 0.028 0.026 Average Temperature: 10.2 ℃ average temperature: 0.030 0.028 Average Temperature : 25.3 ℃ heat resistance, (m2.K) / W 25mm thickness average temperature: 0.89 0.94 Average temperature: 10.2 ℃ Average temperature: 0.83 0.88 Average temperature: 25.3 ℃