英国标准 BS 476-7塑料, 塑胶, 木板等火焰传播测试视频

英国标准 BS 476-7塑料, 塑胶, 木板等火焰传播测试

观看英国标准 BS 476-7塑料, 塑胶, 木板等火焰传播测试视频：

Test item 测试名称: fire propagation 火焰传播

Refer products 涉及产品: 塑料, 塑胶, 木板...

Test limit 限量要求：

The results on the flame spread on the material surface should smaller than 165mm from the reference measuring point.

Flame spread at 1½ minutes		Final flame spread
Classification	Limit	Tolerance for one specimen in sample	Limit	Tolerance for one specimen in sample
Classification	mm	mm	mm	mm
Class 1	165	25	165	25
Class 2	215	25	455	45
Class 3	265	25	710	75
Class 4	Exceeding Class 3 limits

Sample request 送样规格:

A minimum 9 test specimens shall be provided, and they shall be representative of the exposed surface of the product

885 mm X 270 mm X thickness (less than 50mm) x 9pcs

it is required to state the product normally used with/without an air gap behind it and the exposed face.

Lead time 测试周期：normal 10 working days

Others 其他信息:

1. Class 0 ( BS476-6 and BS476-7 )

The material must meet the re of Class 1 results to BS 476: Part 7

have a sub-index I1 ≤ 6 and a total index I ≤ 12 results to BS 476 Part 6

Sample for reference 参考图片:

">Sample Report 报告样本：

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