不同檢測標準下木質材料耐燃性能之探討

Fire-retardant Preformance of Wood-based Materials under Different Test Standards

李明賢(Ming-Hsien Lee) ； 王松永(Song-Yung Wang) ； 蔡金木(Ching-Mu Tsai)

《林產工業》 21卷4期 (2002/12) Pp. 289-296

摘要

建築物室內裝修材料之耐燃性將影響建築物對火災之安全性；但其耐燃性評估結果，往往因所採檢驗法之不同而有所差異。本研究就市售常用木質室內裝修材料九種，採用國內現行CNS 6532表面試驗與國外ISO 5660-1、ASTME 1354等所用圓錐量熱儀法測試，探討該二法所測結果間之差異及相關性。結果摘錄如下：1.表面試驗中排氣溫度超過標準溫度所經過時間（tc）與圓錐量熱儀試驗中引燃時間（Tig）間相關性極高；又溫度時間面積（tdθ）與熱釋放率峰值（PHRR）成正相關。2.在圓錐量熱儀之測試中，使用不同加熱強度，會影響試體之引燃時間。3.表面試驗的判定，除溫度時間面積（tdθ）外，多取決於餘焰時間（tl）的測試結果。4.通過表面試驗耐燃3級者皆可達加拿大圓錐量熱儀試驗判定標準3級以上；反之，以圓錐量熱儀評定的等級應用在表面試驗時，有降級之情形。

關鍵字

木質材料 ； 耐燃性 ； 表面試驗 ； 圓錐量熱儀

並列摘要

The incombustibility of interior finish material directly affect the fire safety of building. But the test results of incombustibility sometimes varied with the test method used. The nine kinds of commonly used wood-based interior finish materials were tested by the CNS 6532 surface test and the ISO 5660-1/ ASTM E 1354 cone calorimeter test methods. The difference and the relationship between the test results of the two test methods were studied. The experimental results are summarized as follows: 1. The time elapsed for exceeding reference temperature curve (tc) and the temperature-time area (tdθ) for surface test were both directly proportional to the ignition time (Tig) and the maximum value of heat release rate (PHRR) respectively. 2. In cone calorimeter test, the ignition times were affected by the intensity of heat. 3. The judgment for the surface test results was mainly affected by the time of lingering flame, tl, as well as by the temperature-time factor, tdθ. 4. All of the grade 3 incombustibility materials met the requirements of the class 3 of CAN/ULC S 135 tested by the cone calorimeter method; on the contrary, the requirement met by the cone calorimeter method does not necessarily meet the requirement by the surface test.

並列關鍵字

Wood-based material ； Incombustibility Surface test ； Cone calorimeter