Noxious Gas Test Chamber

Noxious gas tеst chambеrs play a crucial role in thе industrial sector by еnsuring thе longеvity and rеliability of various matеrials and componеnts. Thеsе chambers simulate thе corrosive effects of gasses such as SO2 (Sulfur Dioxidе), H2S (Hydrogеn Sulfidе), CO2 (Carbon Dioxidе), and HCl (Hydrochloric Acid) undеr controllеd conditions of tеmpеraturе and humidity. According to industry standards such as IEC 60068-2-42 and IEC 60068-2-60, thеsе tests are essential for evaluating material rеsiliеncе and predicting sеrvicе life. Lеading manufacturеrs offеr both singlе gas and mixеd gas tеst options, making thеsе environmental testing chambers indispensable for industriеs ranging from еlеctronics to construction.

Reliable Corrosive Gas Testing for IEC 60068-2-42 & IEC 60068-2-60 Compliance

industry noxious gas test chamber enables manufacturers to identify corrosion risks early by accurately simulating real-world exposure to temperature, humidity and trace corrosive gases.

Low-level gases such as SO₂, H₂S and NO₂ can cause long-term damage to metals, coatings and electronic components, often leading to unexpected failures in service.

By providing precise control of gas concentration, temperature and humidity, the system supports IEC 60068-2-42 and IEC 60068-2-60 compliant single and mixed gas testing, delivering repeatable and trustworthy corrosion evaluation results.

Flexible reach-in, walk-in and customized configurations ensure the solution adapts to your specific testing requirements.

To evaluate the resistance of products to degradation caused by exposure to toxic and corrosive gasses, there are a range of Noxious Gas Test Chambers such as:

Noxious Gas Test Chambers for SO2 (sulfur dioxide)

Noxious Gas Test Chambers for H2S (hydrogen sulfide)

Noxious Gas Test Chambers for CO2 (carbon dioxide)

Noxious Gas Test Chambers for HCl (hydrochloric acid)

Standard:

ISO 6988, ISO 3231, DIN 50018, ASTM G87-02, ASTM B845-97，IEC 60950:22, IEC 60068-2-42, IEC60068-2-60,EIA-364-65，PN-EN 60512-11-14，Renault 36-00-802 and VW 80000;

Specifications:

Advantages:

1、High-Sealing Chamber Structure

Multi-layer sealing design with corrosion-resistant materials effectively prevents toxic gas leakage, while an electromagnetic safety door lock prevents accidental opening during operation, ensuring operator safety and stable gas concentration throughout long-duration testing.

2、Real-Time Gas Concentration Monitoring

Integrated H₂S, SO₂, NO₂ and Cl₂ sensors continuously monitor gas concentration and provide closed-loop feedback control to maintain stable test conditions.

3、Exhaust Gas Treatment

The exhaust gas is neutralized using an NaOH solution, with a built-in spray system inside the solution tank to enhance gas–liquid contact and accelerate exhaust gas treatment, ensuring safe and efficient discharge after testing.

4、Independent Gas Delivery

Each gas is supplied through an independent pipeline controlled by high-precision mass flow controllers, eliminating cross-contamination and guaranteeing accurate mixed gas ratios.

5、Corrosion-Resistant Workroom

The noxious gas chamber interior is constructed from SUS316 stainless steel, providing excellent resistance to aggressive corrosive environments and long service life.

6、Smart Control & Easy Maintenance

Programmable color LCD touch screen controller with Ethernet and PC connection allows intuitive operation, remote monitoring and simplified maintenance.

Features and Benefits of Noxious Gas Test Chamber:

1. Integrated Environmental & Gas Control

Simultaneous and precise control of temperature, humidity and corrosive gas concentration

Supports single gas and mixed gas corrosion tests

Fully compliant with IEC 60068-2-42 and IEC 60068-2-60

2. Multi-Gas Corrosion Simulation

Supported gases include SO₂, H₂S, NO₂, NH₃, Cl₂

ppb-level concentration control for reliable accelerated corrosion testing

Suitable for mild, moderate and severe corrosion simulation programs

3. High Sealing & Safe Gas Management

Optimized chamber sealing structure minimizes gas leakage risk

Integrated exhaust gas treatment unit ensures safe and efficient discharge

Continuous gas concentration monitoring throughout the test process

4. One-Stop Customized Solution

From test requirement analysis to design, production, installation and commissioning

Customizable chamber size, gas configuration and test profiles

Professional technical support throughout the entire project lifecycle

Noxious Gas Test Chamber Working Principle:

Test samples are placed inside the sealed test chamber

Corrosive gas (single or mixed) is precisely injected via high-accuracy flow control

Uniform gas distribution is achieved through centrifugal air circulation

Temperature, humidity and gas concentration are continuously monitored

After testing, exhaust gas is purified and safely discharged

Operators can observe sample changes in real time through the inspection window.

Noxious Gas Test Chambers – Testing Procedure：

Preparation

Ensure the test chamber is cleaned and free of contaminants.

Verify the airtight integrity of the chamber to prevent gas leakage.

Set up the test specimen inside the chamber according to the specific test protocol.

Gas Introduction

Introduce the noxious gas (SO2, H2S, NO2, etc.) into the chamber at the specified concentration.

Monitor gas concentration to ensure it remains within the target range.

Temperature and Humidity Control

Adjust the chamber temperature to the required test conditions, typically between 20°C to 30°C.

Control the relative humidity within the chamber, maintaining it at specified levels, usually 75% to 90%.

Test Duration

Conduct the exposure test for the prescribed duration, which can vary from several hours to multiple weeks, depending on the material and test standards.

Monitoring During Test

Continuously monitor the gas concentration, temperature, and humidity to ensure consistent test conditions.

Record data at regular intervals for analysis and validation.

Post-Test Procedures

Upon completion of the test, safely vent the noxious gas from the chamber.

Remove the test specimen and perform any required post-test evaluations, such as visual inspections or structural assessments.

Documentation

Document all test conditions, procedures, and observations in a detailed report.

Compare test results with the standard references to determine the performance and durability of the test specimen.