Material Smoke Toxicity Hazard Classification Tester
Material Smoke Toxicity Hazard Classification Tester — ToronFT™ STH-M
ToronFT™ STH-M Material Smoke Toxicity Hazard Classification Tester is a precision analytical instrument designed for the smoke toxicity hazard classification of materials that produce stable smoke during combustion. Based on the ISO 19700 international standard methodology — which uses gas analyzers to determine the smoke toxicity hazard classification of combustion products — the ToronFT™ STH-M measures the concentrations of toxic gas species in the smoke produced by materials under controlled burning conditions and classifies the material's smoke toxicity hazard accordingly.
The smoke toxicity hazard classification tester operates across a wide temperature range of 300–1000°C, with adjustable air flow (1–20 L/min), and integrates an annular furnace, quartz tube, quartz boat, flue gas collection and distribution components, and an air supply system into a complete, automated testing platform.
Material Smoke Toxicity Hazard Classification Tester — ToronFT™ STH-M Applications
- Building and construction material manufacturers: smoke toxicity hazard classification for product certification and building code compliance
- Transportation material manufacturers: smoke toxicity qualification of rail vehicle, aircraft, and marine interior materials
- Cable and wire manufacturers: smoke toxicity evaluation of insulation and jacketing materials for tunnel and building installations
- Third-party fire testing and certification laboratories: smoke toxicity hazard classification per ISO 19700
- R&D departments: evaluation of new material formulations for reduced smoke toxicity in fire conditions
- Polymer and composite material manufacturers: characterization of combustion product toxicity across material types
Standards
The ToronFT™ STH-M supports smoke toxicity hazard classification in compliance with internationally recognized standards, including:
- ISO 19700: Controlled equivalence ratio method for the determination of hazardous components of fire effluents
- ISO 5659-2: Plastics — Smoke generation — Part 2: Determination of optical density by a single-chamber test
- EN 45545-2: Railway applications — Fire protection on railway vehicles — Requirements for fire behaviour of materials and components
- IEC 60754-2: Test on gases evolved during combustion of materials from cables — Part 2: Determination of degree of acidity
- NFPA 269: Standard test method for developing toxic potency data for use in fire hazard modeling
Material Smoke Toxicity Hazard Classification Tester — ToronFT™ STH-M Key Features
- Based on the ISO 19700 international standard gas analyzer methodology — providing internationally recognized smoke toxicity hazard classification data
- Applicable to all materials that produce stable smoke — covering building materials, polymers, cables, composites, and transport interior materials
- Integrated instrument composition: annular furnace, quartz tube, quartz boat, flue gas collection and distribution components, air supply system
- Wide temperature control range: 300–1000°C — covering all standard smoke toxicity test temperature protocols
- Adjustable air flow: 1–20 L/min — providing precise control of combustion equivalence ratio for standard-specified conditions
- Automation for repeatable, accurate test execution and data acquisition
- Compliant with ISO 19700 — the primary international standard for gas analyzer-based smoke toxicity hazard classification
Theory and Method
Smoke toxicity hazard classification determines the potential lethality or incapacitation hazard of combustion products generated by a burning material. The ISO 19700 method uses a tube furnace to combust a defined mass of the test material at a controlled equivalence ratio (the ratio of fuel to oxygen relative to stoichiometric combustion), generating a steady-state smoke flow that is analyzed by gas analyzers for CO, CO₂, HCN, HCl, HBr, SO₂, NOₓ, and other toxic species.
The ToronFT™ STH-M places the specimen in a quartz boat within the quartz tube of the annular furnace, which is heated to the specified test temperature (300–1000°C) under controlled air flow (1–20 L/min). The combustion gases are captured by the flue gas collection and distribution system and directed to the gas analyzer array, which continuously measures species concentrations throughout the burning event. The toxicity hazard classification is determined by comparing the measured toxic gas concentrations to the lethality concentration thresholds defined by ISO 19700, assigning the material to the appropriate hazard class.
Material Smoke Toxicity Hazard Classification Tester — ToronFT™ STH-M Technical Specifications
| Component / Parameter | Specification Details |
|---|---|
| General Information | |
| Model | ToronFT™ STH-M |
| Test Method | Gas analyzer smoke toxicity hazard classification |
| Standard Compliance | ISO 19700 |
| Applicable Materials | All stable smoke-producing materials |
| System Composition | |
| Core Components | • Annular (Ring) furnace • Quartz tube & quartz boat • Flue gas collection and distribution system • Temperature control & displacement systems • Air supply system |
| Safety Features | Fully enclosed flue gas system (safety design) |
| Temperature Control System | |
| Control Range | 300°C to 1000°C |
| Control Accuracy | ±1°C (static) |
| Temperature Fluctuation | ±2°C (dynamic) |
| Motion & Displacement System | |
| Displacement Rate | 10 ±0.01 mm/min (adjustable) |
| Return Speed | 50 mm/min |
| Stroke Range | ≥600 mm |
| Control Accuracy | 0.01 mm/min |
| Air Flow & Exhaust System | |
| Air Flow Range | Configurable from 0–15 L/min up to 1–20 L/min (adjustable) |
| Smoke Extraction | Includes smoke extraction system (Note: smoke purification device is excluded) |
| Material Specifications | |
| Quartz Tube | Temperature resistant up to 1600°C; designed for easy disassembly and cleaning |
| Electrical Parameters | |
| Voltage | AC 220V ±10% / 50Hz (110V is also available) |
| Current | ≤10A |
| Maximum Power | 1.5 kW |
| Heating Power | 800–1000 W |
| Configuration & Accessories | |
| Included Accessories | • Rat cages: 10 units • Calibration device: 1 set |
| Dimensions & Weight | |
| Equipment Dimensions | 1900 mm × 650 mm × 1800 mm (L × W × H) |
| Equipment Weight | Approx. 425 kg |