深圳鹏标检测技术
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| BS 476-6:1989+AC:2014 | Fire propagation | 6 pieces of 225 (±1.5) mm by 225 (±1.5) mm by thickness (less than 50mm); and |
| BS 476-7:1997+A1:2014 | Classification of the surface spread of flame of products | 9 pieces of 885 (+0, -5)mm by 270 (+0, -5)mm by thickness (less than 50mm); Only where specimens are being prepared with a view to achieving a class 1 standard of performance, shall the length of the specimen be reduced to a minimum of 250 mm. |
