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Combustion Toxicity Index Tester CIT Testing Machine Thermal Decomposition Toxic Gas Test Bench Fire Smoke Safety Detector
Introduction
The LR-ER104 Combustion Toxicity Index (CIT) Tester employs the tube furnace combustion test method; the specimen undergoes high-temperature decomposition and gas release, and the evolved gases are collected for toxicity analysis.
Combustion Toxicity Index Tester CIT Testing Machine Thermal Decomposition Toxic Gas Test Bench Fire Smoke Safety Detector
Scope of Application
The LR-ER104 Combustion Toxicity Index (CIT) Tester is suitable for toxicity index testing of non-metallic materials used in halogen-free, low-smoke, and low-toxicity electric wires, cables, or optical cables. Quantitative analysis of SO2, NOx, and HCN must be performed if nitrogen and sulfur are present; if the absence of nitrogen and sulfur is confirmed, such quantitative analysis is not required.
Combustion Toxicity Index Tester CIT Testing Machine Thermal Decomposition Toxic Gas Test Bench Fire Smoke Safety Detector
Standards Compliance
1.Complies with Appendix C, "Toxicity Index Test Method," of GB/T 19666-2019, *General Rules for Flame-Retardant and Fire-Resistant Electric Wires, Cables, or Optical Cables*.
2. Complies with EN 50305:2020 "Railway applications — Railway rolling stock cables having special fire performance — Test methods";
3.Complies with NF X70-100 and NF X 70-100-2;
4. Complies with NF X70-100:2006 "Analysis of combustion gases — Part 1: Methods for analysis of gases produced by thermal degradation";
5. Complies with NF X70-100-2:2006 "Analysis of combustion gases — Part 2: Tube furnace thermal degradation method";
6. Complies with EN 45545-2:2013 "Railway applications — Fire protection on railway vehicles — Part 2: Requirements for fire behaviour of materials and components," Annex C "Test method for the determination of toxic gases in railway products";
Combustion Toxicity Index Tester CIT Testing Machine Thermal Decomposition Toxic Gas Test Bench Fire Smoke Safety Detector
Main Features
1. Temperature control: Uses Proportional-Integral-Derivative (PID) regulation and control;
2. Heating rate: Controlled via PLC programming;
3. Inner furnace chamber surface: Coated with a high-temperature alumina material (imported from the USA, rated for 1750°C) to enhance reflectivity and heating efficiency while extending the instrument's service life;
4. Heating elements: Uses imported Japanese resistive heating wires embedded with extended ceramic rings and copper pillars to reduce contact resistance, improve heating efficiency, and extend the furnace body's service life;
5. Specimen tray: Uses a specially customized calcined quartz boat;
6. Specimen handling: Electromagnetic mechanism for inserting and retrieving specimens, ensuring ease of use and safety.
Combustion Toxicity Index Tester CIT Testing Machine Thermal Decomposition Toxic Gas Test Bench Fire Smoke Safety Detector
Combustion Toxicity Index Tester CIT Testing Machine Thermal Decomposition Toxic Gas Test Bench Fire Smoke Safety Detector
Specification
Main Technical Specifications
Category
Item
Specification
Tube Furnace
Performance
Uniform temperature field, low external surface temperature, rapid heating/cooling rates
Heating Chamber
Effective length × tube diameter: 600 × φ42 mm
Operating Temperature
(800 ± 10)°C
Test Duration
40 min
Temperature Control
PID control system
Heating System
Electric heating; power: 220V / 10 kW
Flow Rate Control
Needle valve regulated: 0.33 m/s
Air Source
Air compressor, 160 L/h
Combustion Tube & Boat
Combustion Tube Material
Refractory silica (corrosion-resistant)
Combustion Tube Size
Inner diameter 40 mm; extends 60–200 mm from furnace inlet side and 60–100 mm from outlet side (thermal expansion clearance reserved)
Combustion Boat Material
Fused quartz
Combustion Boat Size
Length 100 mm × width 25 mm × depth 10 mm
Boat Feed Mechanism
Driven by bar magnet and platinum wire
Gas & Sampling System
Gas Collection
3 collection bottles + 2 gas bags
Air Flow Meter
Adjustable range: 16 L–160 L
Compressor
To be provided by the buyer
Sampling Section
Bubbling device, quartz wool, cooling pump, filter, etc.
Sample Size
500 mg–1000 mg
Analytical Balance Precision
1 mg
Evolved Gas Analysis
Carbon Monoxide (CO)
Infrared analyzer; measurement range: 0%–10%
Carbon Dioxide (CO₂)
Infrared analyzer; measurement range: 0%–20%
Sulfur Dioxide (SO₂)
Gas detector tube (connected to gas bag); volume fraction: 1×10⁻⁶–2×10⁻⁶ or 50×10⁻⁶–8000×10⁻⁶
Nitrogen Oxides (NOₓ)
Gas detector tube (connected to gas bag); volume ratio ranges:a) 0.5×10⁻⁴ ~ 10×10⁻⁴b) 5×10⁻⁴ ~ 100×10⁻⁴c) 20×10⁻⁴ ~ 500×10⁻⁴d) 500×10⁻⁴ ~ 5000×10⁻⁴
Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong, is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent tes...
Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong, is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent tes...
