ISO 5657:1997

Overview

ISO 5657:1997 - "Reaction to fire tests - Ignitability of building products using a radiant heat source" specifies a laboratory method to assess the ignitability of essentially flat building products, composites or assemblies when exposed horizontally to a controlled radiant heat flux. The test is intended for comparative evaluation and quality control of materials and does not by itself predict full-scale fire behaviour.

Key topics and technical requirements

• Test principle: specimens are irradiated on the exposed surface at constant irradiance (typical range ) while a pilot flame is applied periodically above the centre to detect ignition.