At present, a large scale test method is used to assess spread of flame on wall and ceiling linings (BS 476: Part 7) and is commonly used by legislators and specifiers.

目前，大规模的测试被用来评估火焰在墙上和天花板上的传播能力(BS 476： Part 7)并被立法者和专家广泛使用。

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It requires that a test specimen be installed in a horizontal (ceiling) position and then be exposed to a gas burner flame.

这种方法要求被测试样安置在地面或者天花板上，然后面向燃气火焰。

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It requires that a test specimen be installed in a horizontal (ceiling) position and then be exposed to a gas burner flame.

当样品被加热的时候，用一台氧气分析仪测量样品的热释率。

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Melamine is commonly used in coatings and laminates, wood adhesives, fabric coatings, ceiling tiles and flame retardants.

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To know that this flame will spread this way across the door and up across the ceiling.

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