Fire resistance of timber door assemblies. Method of determining the efficacy of intumescent seals Ingestion-build-71203 Manufacturers of gas extinguishing systems

Manufacturers of gas extinguishing systems

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Fire resistance of timber door assemblies. Method of determining the efficacy of intumescent seals Ingestion-build-71203 Manufacturers of gas extinguishing systems1 Scope This International Standard specifies a test method for determining the effective sealing capability of intumescent materials or systems in the context of sealing door to frame clearances in timber door assemblies. Intumescent seals extend the duration for which the gap between the leaf edge and the frame will satisfy the integrity criteria of the fire resistance test, and sealing systems can be compared using this method. The method is