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Mixed Gas Test Chamber

Name: Mixed Gas Test Chamber
Brand: Xi'an LIB Environmental Simulation Industry

LIB industry mixed gas test chamber is engineered to reproduce real atmospheric corrosion mechanisms caused by industrial and marine pollutants.
By combining toxic gas exposure, temperature variation, and high-humidity environments, the system enables accelerated corrosion testing that closely reflects long-term field conditions—within a controlled and repeatable laboratory setting.

The chamber supports single-gas testing (H₂S / SO₂ / NO₂ / Cl₂/NH3) as well as mixed flowing gas (MFG) corrosion tests, allowing users to simulate different pollution severities and regional environments.

With an integrated gas dilution, neutralization, and safety control system, LIB industry mixed gas test chamber is suitable for long-duration testing, R&D verification, and compliance qualification across multiple industries.

Standard Models Available GCM-100 | GCM-225 | GCM-500 | GCM-800 | GCM-1000

Features and Benefits of Mixed Gas Test Chamber

1. Integrated Gas Neutralization for Laboratory Safety

The NaOH solution tank with spraying device accelerates gas dilution and neutralization before exhaust.
This design significantly reduces operator exposure risk and ensures safe handling of toxic gases during and after testing.

Especially important for long-duration or high-frequency corrosion tests.

2. High-Integrity Sealing & Access Protection

The chamber adopts a concave–convex sealing structure, combined with double-layer hard silicone sealing strips and an electromagnetic door lock.

This ensures:

Stable airtight performance under high humidity
Prevention of gas leakage
Elimination of misoperation during testing

3. Accurate & Repeatable Gas Concentration Control

Each noxious gas is controlled via precision flowmeters and dedicated sensors, enabling fine adjustment and stable concentration maintenance.

This guarantees:

High test repeatability
Reliable comparison between different materials or coatings
Consistent compliance with international standards

4. Single & Mixed Gas Test Compatibility

The system fully complies with IEC standards for single-gas corrosion testing, while also supporting mixed gas combinations that better simulate real-world polluted atmospheres.

Users can easily switch between different test modes through the programmable controller.

Specifications of Mixed Gas Test Chamber

Model	GCM-100	GCM-225	GCM-500
Internal Dimensions (mm)	400500500	500600750	700800900
Overall Dimensions (mm)	101010501620	111011501860	133013502010
Interior Volume (L)	100	225	500
Temperature Range	15 ℃ ～ 80 ℃
Temperature Fluctuation	± 0.5 ℃
Temperature Deviation	± 2.0 ℃
Humidity Range	30% ~ 98% RH
Humidity Deviation	±2.5% RH
SO2 Concentration	100 ~500 ppb± 20 ppb (Adjustable)
H2S Concentration	10 ~100 ppb ± 20 ppb (Adjustable)
NO2 Concentration	200 ppb ± 20 ppb (Adjustable)
Cl2 Concentration	10 ~20 ppb ±5 ppb (Adjustable)
Air Change Rate	3~10times /h
Cooling system	Mechanical compression refrigeration system
Humidifier	External isolation, stainless steel surface evaporation humidifier
Water Supply System	Water purification system, Automatic water supply
Controller	Programmable color LCD touch screen controller Ethernet connection, PC Link
Gas Sensor	H2S/NO2/CL2/SO2 gas sensor
Air Circulation	Centrifugal wind fan
Door Lock	Electromagnetic lock
Gas Exhaust Device	Exhaust Unit
Safety Device	Humidifier Dry-combustion Protection; Over-temperature Protection; Over-current Protection; Water Shortage Protection; Earth leakage Protection
Interior material	SUS316 stainless steel +Glass fiber reinforced plastics
Exterior material	Steel Plate with protective coating

Configuration of Mixed Gas Test Chamber

①Workroom	Interior material of workroom is SUS316 stainless steel & glass fiber reinforced plastics to resist noxious gases corrosion.
②Air circulation system	Air circulates to ensure uniform gas concentration, temperature, humidity, etc. in all areas of the workroom. The gas mixture better contact with the test sample.
③Heating system	The electric heating wire, combined with the temperature sensor, provides the required heat for the test chamber at a heating rate of 3℃/min.
④Control system	Composed of programmable touch screen, it can centrally control and monitor temperature, humidity, gas concentration, air circulation, etc. Display the running status of each parameter in real time.
⑤Cooling system	The compression refrigeration unit realizes the cooling of the workroom through the circulation of the refrigerant, and the cooling rate is 1℃/min.
⑥Exhaust device	At the end of the test or when the gas needs to be replaced, the gas in the chamber is diluted through the NaOH solution tank and then discharged.
⑦Humidity system	Steam humidifiers, add water to the air in the chamber to achieve the set humidity.
⑧Gas flowmeter	Precise control of noxious gas flow with high accuracy. SO2 Concentration: 100 ~500 ppb± 20 ppb (Adjustable) H2S Concentration: 10 ~100 ppb ± 20 ppb (Adjustable) NO2 Concentration: 200 ppb ± 20 ppb (Adjustable) Cl2 concentration: 10 ~20 ppb ±5 ppb (Adjustable)
⑨Gas sensor	4 gas probes, working independently, for real-time monitoring of the concentration of noxious gases in the chamber.

Applicable Gas Types & Test Capability

LIB industry mixed gas test chamber supports flexible configuration based on test objectives:

Single gas corrosion testing
H₂S / SO₂ / NO₂ / Cl₂/NH3/... independently controlled
Mixed flowing gas corrosion testing
Multiple gases introduced simultaneously at controlled ratios
Coupled temperature–humidity–gas environments
Stable operation under high humidity and variable temperatures

Each gas channel is independently monitored and controlled, ensuring repeatability between test batches and consistency across long-term test programs.

Contact LIB industry inquiry@libtestchamber.com to configure your mixed gas test chamber with the right standards, gas combinations, and chamber size—backed by a 3-year warranty, lifelong technical support, 24/7 English-speaking service, and globally available spare parts for long-term, worry-free operation.

Send Inquiry

LIB Team will send you specs and quote today.