BS 476-6 is the sixth part of the BS 476 multi-series that discusses fire tests for building materials and structures.
BS 476-6 specifies a method of test, the result is expressed as a fire propagation index, that provides a comparative measure of the contribution to the growth of fire made by an essentially flat material, composite or assembly. BS 476-6 is primarily intended for the assessment of the performance of internal wall and ceiling linings.
BS 476-6 on fire tests on building materials and structures is useful for:
Certain building materials contribute to a fire hazard in its early stages. Hence, these materials need to be tested to identify how they propagate the fire in its early stages and to identify whether they contribute positively to protection against fire hazards.
The test method described in BS 476-6 takes account of the combined effect of factors such as the ignition characteristics, the amount and the rate of heat release, and the product’s thermal properties concerning their ability to accelerate the rate of fire growth.
BS 476-6 ensures that greater significance is placed on those factors affecting the early stages of the test compared with those affecting the later stages.
Overall, the guidance of BS 476-6 helps you identify a product’s performance in the early stages of a fire. This can help you to select suitable building materials to incorporate into your projects and enhance the building’s structural integrity.