BS EN 1366-3:2021 PDF Download

BS EN 1366-4 is a standard that specifies a method for determining the fire resistance of linear joint seals based on their intended end-use. It excludes perimeter seals of curtain walling. The standard includes tests for joint seals with and without mechanically induced movement. However, it does not address the load-bearing capacity of the seals, nor does it provide information on the rate of leakage of smoke and/or hot gases.

The standard is relevant for manufacturers, suppliers, testing authorities, fire safety agencies, installers, and civil engineers involved in the assessment of fire resistance of linear joint seals. Fire resistant linear joint seals play a crucial role in establishing passive fire protection in buildings, helping to save lives and property during fires. This standard provides test methods to assess the effect of linear joint seals on the integrity and insulation of construction elements, ensuring they meet specified duration requirements.

By following the tests specified in BS EN 1366-4, manufacturers and fire departments can evaluate and ensure the quality of seals, preventing the passage of fire between components and reducing the likelihood of mechanical failure. Implementing this standard also helps in selecting the appropriate fire rated penetration seals for various applications, ensuring safe evacuation during emergencies and providing time for rescue services. The standard has been updated in 2021, with changes including the description of mechanically induced movement only prior to fire exposure, clearer definition of movement capability, and additional detailed testing procedures for different applications.