BS 4790：1987测试标准详解

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BS 4790：1987
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Determination of the effects of a small source of ignition on textile floor coverings
（hot metal nut method）
小火源对纺织物地板覆盖物作用效果（热金属核法）
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+ T0 S4 ~" ~4 q; O( a- JScope: It is applicable to all types of textile floor coverings whether loose-laid or fully adhered and used with or without an underlay
适用范围：适用于所有类型的纺织品地板覆盖物。

- B" [( H# {' ~! w& RMethod of mounting test specimens: loose-laid ,fully adhered, loose-laid with an underlay
样品安装方法：松铺型，完全粘附型，松铺带衬垫型
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8 G1 k$ Q8 S. YTest specimen: At least 3 test specimens each measuring 300mm*300mm
% M4 d- ~* \$ r6 t测试样品：至少3个试样300mm*300mm

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Item   w, o( T$ {" B7 o: u; h# D	Standard	Requirement 3 k( A' E. y8 N' g. F
Flame 5 _2 \) I8 t7 `9 Y; F, l  t) A	BS5287	ⅰ）If the floor covering has a low radius(up to 35mm) of effects of ignition Pass 3 n3 k: d8 S. L% U' F2 z0 h如果地板覆盖物表面燃烧半径少于35mm  通过 ⅱ）If the floor covering has a medium radius(over 35 up to 75) of effects of ignition " V$ J8 X7 n; nPass 如果地板覆盖物表面燃烧半径大于35mm少于75mm  通过 ⅲ）If the floor covering has a high radius(over 75mm)of effects of ignition Failure 7 i! T1 J# Z2 o如果地板覆盖物表面燃烧半径大于75mm  失败

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Conditioning: At least 24Hours in Humidity of 65+-2%and a temperature of 20degree
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