Halogen Acid Gas Release Tester
Halogen Acid Gas Release Tester – ToronFT™ HA-RG
ToronFT™ HA-RG is an Halogen Acid Gas Release Tester engineered to quantify the total amount of halogen acid gases — excluding hydrofluoric acid — released during the combustion of halogenated polymer-based mixtures and halogen-containing additive mixtures. It is specifically applicable to materials taken from the construction of electric or optical cables, providing critical data for material characterization and fire safety assessment.
As a precision halogen acid measurement instrument, the HA-RG evaluates both the acidity (pH) and electrical conductivity of gases dissolved in an aqueous solution during the combustion process. This dual-parameter approach enables a comprehensive assessment of the halogen acid release behavior of each component material within a cable or optical cable assembly, making it an essential tool for manufacturers, laboratories, and certification bodies working with LSZH (low-smoke zero-halogen) cable compounds.
Halogen Acid Gas Release Tester – ToronFT™ HA-RG Applications
- Halogen acid gas content testing of insulation and jacketing materials for electric and optical cables
- Compliance testing of low-smoke, zero-halogen (LSZH) cable compounds and polymers
- Evaluation of halogenated polymer-based additives and flame-retardant compounds in cable materials
- Quality control testing for LSZH cable manufacturers and material suppliers
- Research and development of halogen-free cable materials and formulations
- Third-party and accredited laboratory certification testing for halogen acid release
Standards
- IEC 60754-1 — Test on Gases Evolved During Combustion of Materials from Cables: Determination of the Amount of Halogen Acid Gas
- IEC 60754-2 — Test on Gases Evolved During Combustion of Materials from Cables: Determination of Degree of Acidity of Gases by Measuring pH and Conductivity
Halogen Acid Gas Release Tester – ToronFT™ HA-RG Key Features
- Intelligent, automated test control with precise temperature programming and monitoring throughout the combustion cycle
- High-temperature tubular furnace with a heating cavity effective length of 600 mm and tube diameter of φ58 mm, providing uniform heating across the specimen
- Adjustable electric heating system powered at 220V/6 kW, ensuring stable and reproducible furnace temperature conditions
- Combustion tube constructed from refractory high-temperature quartz (silica) material, offering excellent resistance to corrosive halogen acid gases generated during specimen combustion
- Dual-parameter measurement capability: simultaneous evaluation of acidity (pH) and electrical conductivity of absorption solution for complete halogen acid characterization
- Designed for testing individual component materials from cable and optical cable assemblies, supporting component-level halogen acid analysis
- Compatible with testing of both halogenated polymer mixtures and halogen-containing additive mixtures, providing broad material applicability
- Robust system design with corrosion-resistant materials throughout the gas pathway, ensuring long-term reliability when working with aggressive halogen acid gases
Theory and Method
The ToronFT™ HA-RG subjects cable material specimens to controlled combustion inside a high-temperature tubular furnace. During combustion, halogen-containing compounds within the material thermally decompose and release halogen acid gases (such as HCl, HBr, and HI). These gases are carried by a controlled airflow through the combustion tube and are subsequently absorbed into a defined volume of distilled water in a collection vessel.
The resulting aqueous solution is then analyzed for two key parameters: (1) pH — measured by a pH meter to determine the acidity (degree of halogen acid gas content), and (2) electrical conductivity — measured by a conductivity meter to quantify the total ionic concentration of dissolved halogen acid gases. These two measurements together provide the complete halogen acid gas characterization required under IEC 60754-1 and IEC 60754-2.
Halogen Acid Gas Release Tester – ToronFT™ HA-RG Technical Specifications
| Component / Parameter | Specification Details |
|---|---|
| General Information | |
| Product Name | Halogen Acid Gas Release Tester |
| Brand / Model | ToronFT™ HA-RG |
| Applicable Standards | IEC 60754-1; IEC 60754-2 |
| Applicable Materials | Halogenated polymer mixtures and halogen-containing additive mixtures from cables |
| Test Capabilities | • High-temperature decomposition of cable materials • Meets testing requirements for Low-Smoke Halogen-Free (LSZH) materials • Supports dual analysis of pH and conductivity |
| Output Results | Halogen acid gas content, pH value, and conductivity (μS/cm) |
| Tube Furnace & Heating System | |
| Furnace Type | Tubular electric furnace |
| Heating System | Adjustable electric heating |
| Heating Zone Effective Length | 600 mm |
| Furnace Tube Diameter | Φ58 mm |
| Voltage | 220V (110V is also available) |
| Heating Power | 6 kW |
| Combustion Tube & Boat | |
| Combustion Tube Material | Refractory high-temperature quartz (silicon dioxide); resistant to corrosive halogen acid gases |
| Combustion Tube Dimensions | • Inner Diameter: 40 mm • Extension Length (Inlet Side): 60–200 mm • Extension Length (Outlet Side): 60–100 mm |
| Combustion Boat Specifications | • Material: Quartz • Dimensions: 75 × 27 × 8.5 mm |
| Sample Injection Method | Magnet + Platinum wire traction |
| Gas Supply & Collection System | |
| Gas Absorption System | NaOH solution absorption method |
| Absorption Bottles | 3 units |
| Absorption Solution | ≥220 mL NaOH solution |
| Stirring Mechanism | Equipped with a magnetic stirring device |
| Air Flow Rate | 50–500 mL/min (adjustable) |
| Air Supply | Compressed air (provided by the customer) |
| Testing & Analysis (Optional) | |
| pH Measurement (Acidity) | • Measurement Range: -1.00 to 15.00 pH • Accuracy: ±0.01 pH • Temperature Compensation: 0–100°C |
| Conductivity Measurement | • Measurement Range: 0 to 2×10⁵ μS/cm • Accuracy: ±1.0% FS (Full Scale) • Temperature Compensation: 15–35°C |