This part of EN 1366 specifies a test method for determining the fire resistance of smoke extraction
ducts that are used for single compartment applications only. In such applications, the smoke
extraction system is only intended to function up to flashover (typically 600 °C).
This method of test is only suitable for ducts constructed from non-combustible materials (euro
class A1 and A2-s1, d0).
It is applicable only to four sided and circular ducts. One, two and three sided ducts are not covered.
This test has been designed to cover horizontal smoke extraction ducts intended for single
compartment applications only.
This test method of part 9 is applicable only to smoke extraction ducts that do not pass through into
other fire compartments. It represents fire exposure of a developing fire (pre-flashover). For smoke
extraction ducts that pass through into other compartments, the method of test described in EN 1366-
8 should be used.
The smoke extraction duct is part of the smoke extraction system which also includes smoke control
dampers and smoke extract fans.
The method described in this test standard is complex and requires sophisticated instrumentation. It is
not recommended therefore to try to test multiple assemblies in this test.
EN 1366-9:2008 Referenced Document
EN 1363-1:1999 Fire Resistance Tests - Part 1: General Requirements
EN 1363-2 Fire resistance tests - Part 2: Alternative and additional procedures
EN 1366-1:1999 Fire Resistance Tests for Service Installations - Part 1: Ducts
EN 1751 Ventilation for buildings - Air terminal devices - Aerodynamic testing of damper and valves*， 2014-01-01 Update
EN 60584-1 Thermocouples - Part 1: EMF specifications and tolerances*， 2024-04-19 Update
EN ISO 5167-1 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2022)*， 2022-06-29 Update
ISO 5221 Air distribution and air diffusion; Rules to methods of measuring air flow rate in an air handling duct
EN 1366-9:2008 history
2008EN 1366-9:2008 Fire resistance tests for service installations - Part 9: Single compartment smoke extraction ducts