Fire Resistance Testing: BS 476 vs BS EN Standards — A Comparison

The UK uses both national (BS 476) and European (BS EN) fire test standards. We explain the differences and when each applies.. BS 476 vs BS EN BS 476 (National Standard) Parts 20 24 cover fire resistance Results expressed as time in minutes Well understood in UK industry Still acceptable for demonstrating compliance BS EN 1363/1364/1365/1366 (European Standards) Harmonised European test methods Results classified per BS EN 13501 2 Expressed as REI (Resistance, Integrity, Insulation) + time Required for CE marking Key Differences Furnace temperature curves are similar but not identical BS EN tests may include additional criteria (radiation) Classification system provides more detailed performance data Both remain acceptable in England for Building Regulations For fire testing guidance, contact us.