After 26 July 2016, applications for type approval submitted to the Finnish Transport Safety Agency Trafi for materials used in buses according to ECE Regulation No. 118 must be for component types as specified in rev. 1. The transition period that came into effect on 26 July 2012 comes to an end then.
Further readingRegulation on the burning behaviour of the components used in the interior compartment of buses.
Changes on fire testing
- Fire testing also applies to the insulation materials used in the engine compartment and any separate heating compartments of the bus. Previously, fire tests only applied to materials used in the interior compartment of the bus.
- With the change of test method, some materials are subject to stricter requirements than before.
- An alternative test method that applies to the fire testing of materials used in ships and trains can also be used.
Determination of the burning rate of the material – test methods described in Annex 6 and Annex 8
A significant change applies to the determination of the burning rate of material. In practice this means that the material is tested with the test specimen mounted in a horizontal (Annex 6) or vertical position (Annex 8).
Previously, all materials except curtains were subject to the horizontal test method described in Annex 6.
According to E 118 rev. 1, horizontal burning rate of materials is tested only for materials installed in a horizontal position. Other burning rates of materials are tested with the test specimen mounted in a vertical position as described in Annex 8.
The requirement for the burning rate remains unchanged at no more than 100 mm/min. Because fire spreads more quickly in a vertical position, this means stricter requirements for materials that will now be tested in a vertical position according to series 02 of amendments.
Fire test with same material to determine the horizontal and vertical burning rate of materials according to ECE Regulation No.118
Testing according to the ISO 5658-2 standard alternative test for methods described in Annex 7 and Annex 8
Testing according to the ISO 5658-2 standard that has been used in the testing of materials used in ships and trains can be used as an alternative fire test.
According to E 118 rev.1, materials achieving an average CFE (critical heat flux at extinguishment) value greater or equal to 20 kW/m2, when tested according to ISO 5658-2, are deemed to comply with the requirements of Annex 7 and 8, provided no burning drops are observed.
VTT's services related to the burning behaviour of the components used in buses in type approval testing
VTT Expert Services Ltd provides testing services in relation to the fire safety and type approval of materials used in buses. We can also assist you with the planning of tests for fire testing and type approval.