建築耐燃一級複合材不燃性試驗判定基準之研究

Criteria of Incombustibility Tests for Incombustibility Class 1 Composite Materials

The incombustibility test for incombustibility class 1 composite materials was changed from CNS 6532 to CNS 15694, but the criteria was not stipulated in CNS 15694. Thus, the incombustibility performance was still determined by CNS 6532 criteria. However, the applicability of CNS 6532 criteria for the CNS 15694 test results has not been adequately evaluated, and it might cause doubt in application. Consequently, the difference between CNS 6532 and CNS 15694 should be analyzed and the feasibility of existed criteria needs to be evaluated. This study analyzed the differences in incombustibility tests worldwide, and also conducted comparative experiments to evaluate the feasibility of the existed criteria. Moreover, the criteria of foreign non-flammability test methods were collected. The results show that the test parameters between CNS 6532 and CNS 15694 are different. The comparative experimental results show that although the heating time is different, there is no significant difference in the mass loss percentage. Moreover, the wall temperature of the furnace in the CNS 15694 is higher than that in the CNS 6532. Furthermore, the temperature rise and mass loss percentage during the test period were the criteria for the incombustibility test of EU and Japan. The flame duration of 0 seconds after being heated was further evaluated for the EU incombustibility test. However, this study found that although a brief flame occurred, there was no significance temperature rise. Therefore, this study suggests that the criteria of incombustibility test can refer to the standard stipulated in the Japanese incombustibility test.