Flame Spread Calorimeter，ASTM E2058 flame spread test equipment
Application
The Flame Spread Calorimeter is suitable for:
Building materials: Evaluate flame spread and heat release performance of walls, doors, windows, ceilings, and other construction materials under fire conditions.
Rail transit: Assess fire-retardant performance of railway cars and transit facilities, ensuring compliance with safety standards.
Fire safety products: Provide flame propagation and heat release data for fire safety product certification.
Material manufacturers: Support R&D by providing flame spread and heat release data to optimize product design and performance.
Safety certification: Generate flame spread and heat release data for construction, transportation, and materials industries to support safety certification.
Standards
The equipment meets the following standards:
ISO 12136 – Determination of the Combustion Performance of Construction and Building Products
FM 4910 – Standard for Fire Performance of Building Materials
ASTM E2058 – Standard Test Method for Determining Combustion Performance and Heat Release of Building Materials
Parameters
| Parameter | Specification |
|---|---|
| Dimensions | 3200 mm (L) × 1100 mm (W) × 2500 mm (H) |
| Weight | 540 kg |
| Power Supply | 220V / 380V, 50 Amps |
| Operating Temperature | 10–35°C |
| Working Gas | Compressed air from air compressor |
| Calibration Gases | CO₂/CO mixture, Nitrogen, Ethylene, Compressed air |
| Heater System | Hard-tube branch, single inlet/outlet |
| Filtration System | Triple filtration, main filter stainless steel housing |
| Weighing System Capacity | 6000 g |
| Weighing Resolution | 0.01 g |
| Data Sampling Frequency | 50 ms |
Features
Integrated system: Computer and data acquisition integrated for simplified operation and increased testing efficiency.
User-friendly operation: No need to swap optical filters, enabling fast setup and testing.
Precise filtration: Triple filtration design ensures accurate and interference-free results.
High-precision weighing: 6000 g capacity with 0.01 g resolution ensures accurate mass measurement during combustion.
High-frequency sampling: 50 ms sampling frequency captures real-time and precise data.
Efficient heating and gas control: Combined heating and gas flow system provides stable thermal and flow conditions, ensuring reliable flame spread testing.
Accessories
| Accessory | Quantity | Description |
|---|---|---|
| Calibration gases | 4 bottles | CO₂/CO mixture, Nitrogen, Ethylene, Compressed air |
| Working gas | 1 bottle | Air from compressor for flow control |
| Optical filters | Multiple | Ensure accurate optical system measurement |
| Heater assembly | 1 set | High-efficiency heater for the heating system |
Test Principle
The Flame Spread Calorimeter simulates fire conditions by applying thermal radiation to the test sample. The heater system provides 30 kW/m² of radiative heat, simulating fire conditions. Precise sensors monitor critical parameters in real time, including heat release rate, flame spread speed, and flame spread index. Thermocouples, the weighing system, and gas analyzers work in tandem to record and quantify combustion heat, flame propagation, and other performance indicators, generating detailed test reports.
Operation Instructions
Sample preparation: Fix the test sample to the designated test frame, ensuring correct positioning.
Device setup: Set appropriate gas flow and heating power according to material characteristics and start the testing system.
Testing process: The heater applies thermal radiation to the sample while recording flame spread and heat release data.
Data analysis: Upon completion, software automatically analyzes data and generates flame spread index and other relevant test results.
Post-test cleanup: Shut down the system and clean the equipment to prepare for subsequent tests.
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