ISO 5658 Flame Spread Index Tester
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The Flame Spread Index Tester is designed to evaluate the flame propagation characteristics of wall and ceiling lining materials. You can measure the material’s flame spread index (FSI) by exposing samples to a controlled tubular burner with a heat output of 530 J/s and monitoring the flame development over time. This tester allows you to assess fire performance accurately according to international and national standards, providing critical data for building safety, material development, and regulatory compliance.
Standards
This tester conforms to the following international and national standards:
GB/T 8624‑2012 — Classification of burning behavior of building materials and products (Flame spread index basis)
GB/T 2406.2‑2009 — Plastics combustion test, vertical burning method
GB/T 2408‑2008 — Plastics combustion test, horizontal burning method
GB/T 27904‑2011 — Flame spread test for interior decoration materials
GB/T 16172‑2007 — Determination of heat release rate and total heat release (Cone calorimeter method)
ISO 5658‑2 — Determination of flame spread index, Part 2: Small flame spread test
ISO/TR 9705‑2 — Room corner flame spread test, Part 2: Material performance evaluation
ISO 5660‑2 — Heat release rate, smoke production, and mass loss, Part 2: Flame spread method
ISO 5660‑4 — Heat release and smoke testing for automotive interior materials
ASTM E162 — Surface flammability: smoke density and flame spread
ASTM E648 — Flame propagation of carpet materials
UL 94 — Plastic material flammability: vertical and horizontal burning tests
BS 6853:1999 — Railway vehicle material flame spread, smoke density, and toxicity evaluation
BS 476‑6:1989 + A1:2009 — Fire performance test of building materials, Part 6: Small flame spread method
Accessories
Quartz radiation heaters (2 × 1000 W)
T-shaped tubular burner
Stainless steel sample holders (3 types)
Silicate combustion chamber
Thermocouples and mounting accessories
Integrated computer and printer with data acquisition system
Parameters
| Parameter | Specification |
|---|---|
| Dimensions | 950 × 600 × 870 mm |
| Weight | 105.5 kg |
| Heating Devices | 2 × 1000 W quartz heaters providing thermal radiation |
| Burner Type | T-shaped tubular burner |
| Sample Holders | 3 types, stainless steel wrapped |
| Thermocouples | Continuously measure temperature difference between chimney and room |
| Power Output Control | Automatic adjustment according to test timeline |
| Data Acquisition | Computer-based, report generation |
Application
You can apply this tester in the following scenarios:
Building materials evaluation: Assess the flame spread index of wall and ceiling lining materials.
Plastic material testing: Determine vertical and horizontal flame propagation for polymer materials.
Fire safety compliance: Evaluate materials for civil, railway, and aerospace interior standards.
Quality control: Monitor production materials to ensure consistent fire performance.
Compatible test components: Tubular burner, quartz heaters, T-shaped burner, sample holders, thermocouples, and integrated computer data acquisition system.
Features
Durable stainless steel frame: Ensures structural stability and long-term reliability.
Silicate combustion chamber: Provides uniform and controlled testing environment.
Multiple sample holders: Accommodate different test configurations securely.
Quartz heaters: Deliver consistent thermal radiation to samples.
T-shaped burner: Provides precise direct flame for small flame spread tests.
Continuous temperature monitoring: Thermocouples record chimney versus room temperature.
Automatic power control: Heater output adjusts automatically according to test timeline.
Integrated data acquisition: Computer automatically processes data and generates test reports.
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