NF X10-702-4:1994 Fire test methods. Determination of the opacity of the fumes in an atmosphere without air renewal. Part 4 : Test method for materials used in panel linings.
NF X 10-702-4:1994 防火测试方法.在空气不更新环境下烟的暗度测定.第4部分:面板及衬里的测试方法。
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