BS 476 Building Materials and Fire Tests on Structures

Designed by the British Standards Institute (BSI), the BS 476 standard is a globally accepted British Standard used to determine the performance of structural structural members in the event of a fire, including steel framed buildings. The standard describes how this should be accomplished on critical features such as load-bearing beams and columns, and the unloaded samples necessary to generate enough data to allow meaningful analysis.

Published by ASFP (Association of Specialist Fire Protection), Yellow Book is the management used for statistical analysis of data, including the Acceptability Criteria to ensure the minimum amount of data needed to create an acceptable assessment of product performance and a balanced rather than optimistic approach. recommend principles.

Explains the procedures for determining the fire resistance of the load-bearing elements of structures when the heating and pressure conditions specified in BS 476, BS476-20 and 21 are applied. These standards provide requirements for material selection and/or design and construction, loading and restraint conditions, equipment, procedures and criteria for materials under load. The methods are applicable to beams, columns, floors, attics and walls.

A very important consideration when designing a building is how it will behave in a fire and ensuring that the building elements do not collapse, stand or hold the fire for the foreseen time. Building regulations determine the rules of building elements and the degree of fire resistance. However, British standard 476 specifies the appropriate fire tests for these construction/material elements and rates the fire resistance level. Below is a list of current standards.

BS 476-3 - Fire tests on building materials and structures - Classification and test method for external fire exposure on roofs
BS 476-4 - Fire tests on building materials and structures - Flammability testing for materials
BS 476-6 - Fire tests on building materials and structures - Test method for fire propagation for products
BS 476-7 - Fire tests on building materials and structures - Test method for determining the classification of the surface spread of flame of products
BS 476-10 - Fire tests on building materials and structures - Guidelines for the principles, selection, role and practice of fire testing and their output
BS 476-11 - Fire tests on building materials and structures - Method for assessing heat emission from building materials
BS 476-12 - Fire tests on building materials and structures - Test method for flammability of products by direct flame strike
BS 476-13 - Fire tests on building materials and structures - Method for measuring the flammability of products exposed to thermal radiation
BS 476-20 - Fire tests on building materials and structures - Method for determining the fire resistance of building elements (general principles)
BS 476-21 - Fire tests on building materials and structures - Methods for determining the fire resistance of load-bearing elements of the structure
BS 476-22 - Fire tests on building materials and structures - Methods for determining the fire resistance of non-load-bearing elements of the structure
BS 476-23 - Fire tests on building materials and structures - Methods for determining the contribution of components to the fire resistance of a structure
BS 476-24 - Fire tests on building materials and structures - Method for determining fire resistance of ventilation ducts
BS 476-31 - Fire tests on building materials and structures - Methods for measuring smoke entry from door sets and shutter assemblies - Measurement method under ambient temperature conditions
BS 476-32 - Fire tests on building materials and structures - A guide to full-scale fire tests in buildings
BS 476-33 - Fire tests on building materials and structures - Full scale chamber testing for surface products

This British Standard specifies tests to determine these properties of relevant building materials and structures when considering the fire protection of the buildings in which they will be located.

Our organization also provides testing services for BS 476 Building Materials and Fire Tests on Structures, within the framework of laboratory services of materials.