Railway Vehicle Material Flame Spread Tester
Railway Vehicle Material Flame Spread Tester — ToronFT™ FS-RV
ToronFT™ FS-RV Railway Vehicle Material Flame Spread Tester is a precision fire performance testing instrument designed for the evaluation of flame spread performance of non-metallic materials used in railway vehicles — including single and composite rigid materials, materials with adhesive coatings, and flexible materials with a thickness greater than 5 mm. Using radiation (without burning) for rigid materials and electric burner flame exposure for soft materials, the ToronFT™ FS-RV covers the full range of railway vehicle interior material types in a single, versatile test platform.
The railway vehicle material flame spread tester features a 0.5 m³ fume hood (test box) with an electrostatic high-temperature baking paint finish and integrated smoke exhaust fan, a square stainless steel vertical bracket, an adjustable U-shaped specimen clamp, and a standard Bunsen burner with a 10 mm nozzle diameter — providing the precise, standard-compliant flame spread test environment required for railway vehicle interior material certification per NF P92-504.
Railway Vehicle Material Flame Spread Tester — ToronFT™ FS-RV Applications
- Railway vehicle interior material manufacturers — flame spread performance qualification for rigid panels, composite boards, adhesive-coated materials, and flexible materials
- Third-party fire testing and certification laboratories — railway vehicle material flame spread testing per NF P92-504
- Train and rolling stock manufacturers (OEMs) — incoming material flame spread qualification for interior lining systems
- R&D departments — evaluation of new railway interior materials and flame retardant coating systems for flame spread resistance
- Quality assurance programs — production-lot and incoming inspection flame spread sampling for railway vehicle materials
Standards
The ToronFT™ FS-RV supports railway vehicle material flame spread testing in compliance with internationally recognized rail fire safety standards, including:
NF P92-504 is a French national standard (NF) used to evaluate the reaction to fire of building and furnishing materials by measuring flame spread rate.
Specifically, it is a complementary test used when a material does not perform deterministically during the primary electrical burner test (ébrleur électrique) or when assessing materials that melt or drip. It helps determine the final M-rating (from M1 for non-flammable to M4 for highly flammable) commonly required for materials used in public buildings in France.
Railway Vehicle Material Flame Spread Tester — ToronFT™ FS-RV Key Features
- Dual test mode: radiation mode (rigid materials — no burning during radiation) and electric burner mode (soft materials) — covering all railway vehicle material types in one instrument
- Fume hood (test box): 0.5 m³ internal volume; steel with electrostatic high-temperature baking paint finish; top smoke exhaust fan discharges gases outside at test completion
- Vertical bracket: square stainless steel, 20 mm × 20 mm — robust, corrosion-resistant specimen support
- Model stand: crossbar approximately 420 mm long with 12 mm square cross-section — standardized specimen positioning geometry
- U-shaped specimen clamp: accommodates both soft and hard materials; height-adjustable on the vertical stand — versatile for all material types and thicknesses
- Bunsen burner: 10 mm nozzle diameter — standard flame source for soft material flame impact testing
- Compliant with NF P92-504— the primary French railway vehicle fire safety standards
Theory and Method
Railway vehicle material flame spread testing uses two different test modes depending on the material type. For rigid materials, the test subjects the specimen to a defined radiant heat source without applying a flame — evaluating whether the specimen ignites from radiation alone (radiation mode). For soft materials, the specimen is exposed to a direct flame from the Bunsen burner (electric burner test mode), evaluating how rapidly flame spreads across the surface and whether the material self-extinguishes after ignition.
The specimen is mounted vertically on the adjustable U-shaped specimen clamp, which is secured to a crossbar approximately 420 mm long with a 12 mm square cross-section on the vertical bracket (made of 20 mm × 20 mm square stainless steel). The Bunsen burner (10 mm nozzle diameter) is positioned to apply the standard flame impact to the specimen surface. The 0.5 m³ fume hood (internal volume) captures all combustion gases and smoke through the top-mounted smoke exhaust fan, which discharges gas and smoke to the outside at the end of each test — maintaining a clean test environment between specimens.
Railway Vehicle Material Flame Spread Tester — ToronFT™ FS-RV Technical Specifications
| Parameter | Specification |
|---|---|
| Applicable Materials | Rigid materials, adhesive-coated materials, flexible/soft materials (thickness > 5 mm); railway vehicle interior |
| Test Modes | Radiation mode (rigid materials); Electric burner mode (soft materials) |
| Fume Hood Internal Volume | 0.5 m³ |
| Fume Hood Material / Finish | Steel, electrostatic high-temperature baking paint |
| Smoke Exhaust | Top-mounted fan; discharges to outside at test end |
| Vertical Bracket | Square stainless steel, 20 mm × 20 mm |
| Model Stand (Crossbar) | ~420 mm long, 12 mm square cross-section |
| Specimen Clamp | U-shaped; for soft and hard materials; height-adjustable |
| Bunsen Burner Nozzle Diameter | 10 mm |
| Standard Compliance | NF P92-504 |