The specimens may not burn with flaming or glowing combustion up to the holding clamp 没有任何试片被火焰点燃并燃烧到试片被夹住固定的上端。
2.
The specimens may not hae glowing combustion that persists for more than 30 seconds after the second remoal of the test flame 没有任何试片在第二次测试火焰移开后燃烧持续超过30秒钟。
3.
The specimens may not have glowing combustion that persists for more than 30 seconds after the second removal of the test flame 没有任何试片在第二次测试火焰移开后燃烧持续超过30秒钟。
4.
The specimens may not burn with flaming or glowing combustion for more than 60 seconds after the fifth application of the test flame 在第5次的火焰燃烧5秒钟之后，没有任何一片试片被点燃或持续燃烧超过60秒。
