Combustion Behavior Tests – ECE R118
The combustion and melting behavior of the materials used in the M3 category bus and the capacity increase tests of the materials in the engine compartment are critical not only for product quality but also for passenger safety and legal compliance. Especially for public transportation vehicles, the speed of flame spread is a technical requirement defined by regulations.
Optival performs tests that evaluate the combustion performance and capacity increase of plastic, textile, rubber and composite materials other than glass and metal used in in-vehicle equipment and engine compartments with its own laboratory infrastructure.
Applied Tests and Standards
| Test Type | Reference Standard | Scope |
| Horizontal Combustion Test | ECE R118 Annex 6, FMVSS 302, CMVSS 302 and ISO 3795 | Bus interior upholstery, curtains, seat fabric, etc. |
| Melt Behavior Test | ECE R118 Annex 7 | Bus interior upholstery, curtains, seat fabric, ceiling coverings, etc. |
| Vertical Combustion Test | ECE R118 Annex 8 | Bus interior upholstery, curtain, seat fabric, cable tray and covers, etc. |
| Capacity Increase Test | ECE R118 Annex 9 | Insulation materials in the engine compartment, etc. |
| Cable Burning Behavior | ECE R118 Annex 10 | All cables over 100 mm used |