FTIR Fourier Transform Infrared Smoke Toxicity Test System，ANSI/CAN/UL 9540A Fourier Infrared Smoke Toxicity Analysis System

The FTIR Fourier Transform Infrared Smoke Toxicity Test System is an integrated gas analysis solution designed for real-time and quantitative measurement of toxic gas components in smoke. The system is equipped with a multi-pass gas cell featuring a 5-meter optical path and is fully integrated into a 19-inch standard industrial chassis. Based on Fourier Transform Infrared (FTIR) spectroscopy, the system enables stable, durable, and long-term operation for automatic gas monitoring and analysis. With high-reliability core components such as the interferometer, infrared light source, and diode laser, the system significantly enhances operational stability while reducing overall maintenance and operating costs, making it suitable for smoke toxicity testing and industrial gas analysis applications.

Application

The FTIR smoke toxicity test system is suitable for a wide range of gas analysis and fire testing applications, including:

Smoke toxicity index testing when combined with NBS smoke density test chambers

Toxic gas analysis in fire effluent and smoke research

Gas composition analysis for rail transit material fire performance evaluation

Performance testing of lithium-ion batteries when integrated with battery test systems

Continuous monitoring and quantitative analysis of industrial process gases

Scientific research involving multi-component gas detection and analysis

Standards

The system supports smoke toxicity testing and gas analysis in accordance with the following international and industry standards:

(1) DIN 5510-2 – Fire Behaviour and Smoke Toxicity of Materials Used in Railway Vehicles

(2) ISO 19702 – Guidelines for Sampling and Analysis of Toxic Gases and Vapours in Fire Effluents Using Fourier Transform Infrared (FTIR) Spectroscopy

(3) ISO 5659-2 – Plastics — Smoke Generation — Part 2: Determination of Optical Density by a Single-Chamber Test

(4) EN 45545-2 – Railway Applications — Fire Protection on Railway Vehicles — Requirements for Fire Behaviour of Materials and Components

Parameters

Item	Specification
Quantifiable Gas Species	More than 300 compounds
Spectral Range	4500–800 cm⁻¹
Spectral Resolution	Better than 1 cm⁻¹
Gas Analysis System	Multi-pass gas cell with 5 m optical path
Working Pressure	0–15 bar
Maximum Working Temperature	Up to 191 °C
Dedicated Filter	Filters dust particles ≥ 2 μm
System Integration	19-inch standard industrial chassis

Features

Wide application flexibility, enabling gas measurements under different pressure and temperature conditions through appropriate accessories.

Optimized high-throughput optical design of the gas cell allows quantitative analysis of mixed gases even at concentrations as low as the ppb level.

No gas calibration is required; the system software automatically retrieves target gas concentrations using nonlinear fitting algorithms.

Effects caused by interfering gases and temperature variations are automatically compensated, ensuring accurate real-time qualitative and quantitative results.

Optical system employs a thermoelectrically cooled detector, CenterGlow™ infrared light source for stable high emission, and a RockSolid interferometer to ensure permanent optical alignment.

Equipped with dedicated sampling probes for gas extraction from pipelines or sealed chambers.

Independent and complete gas analysis software package with an intuitive graphical user interface.

Enables fast, continuous, and fully automated gas identification and quantification without requiring specialized user expertise.

Accessories

(1) Multi-pass gas cell with 5 m optical path

(2) Dedicated gas sampling probe

(3) Dust filtration unit (≥ 2 μm)

(4) Integrated interferometer module

(5) Infrared light source and detector assembly

(6) Industrial control and analysis software package

(7) 19-inch industrial chassis and mounting components

Test Procedures

System Preparation

Install the FTIR system in a stable environment and ensure the gas cell, filter unit, and sampling probe are correctly connected.

Sampling Setup

Insert the dedicated sampling probe into the pipeline, test chamber, or smoke outlet where gas collection is required.

Software Configuration

Launch the gas analysis software and select the corresponding measurement or monitoring mode according to the test objective.

Gas Measurement

Gas samples are continuously introduced into the multi-pass gas cell, where infrared spectra are collected and processed in real time.

Data Analysis and Output

The software automatically performs qualitative identification and quantitative analysis of gas components and displays real-time concentration results, which can be stored or exported for further evaluation.

Maintenance Information

Routine inspection of the gas sampling probe, filtration unit, and gas cell is recommended to ensure stable sampling and optical performance. Dust filters should be replaced periodically based on operating conditions. Optical components such as the interferometer and infrared source are designed for long-term stability and require minimal adjustment. Regular software updates and data backups are advised to maintain reliable system operation and data integrity.

Conclusion

The FTIR Fourier Transform Infrared Smoke Toxicity Test System provides a robust and automated solution for real-time analysis of toxic gases in smoke and industrial environments. With a long optical path gas cell, broad gas detection capability, and advanced FTIR analysis software, the system meets the requirements of multiple international fire testing and railway standards. Its high stability, minimal calibration requirements, and flexible application compatibility make it suitable for smoke toxicity testing, fire research, and industrial gas monitoring.

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