用于测定各类纺织织物水平方向燃烧性能，并以火焰蔓延速率来表示。
Used for testing horizontal combustibility of various textile and show with flame spread rate.
如果后续十秒内，任意一个火焰探测器能持续监测到火焰信号，则表示主火焰被证实且点火成功。
If either flame scanner continues to detect flame for a further 10 seconds then the main burner is proven and considered ignited.
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