(Large Scale Test). The treated fabric, both before and after water extraction, shall be tested in accordance with the method outlined in Section 1237.3 below, and shall not continue to flame for more than two (2) seconds after the burner is removed. The vertical spread of flame and afterglow (smoldering combustion), as indicated by the length of char above the tip of the test flame, shall not exceed ten inches (10").
Cal. Code Regs. Tit. 19, § 1237.2