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UL1332 UL2431 SO2 CO2 Gas Corrosion Durability Test Equipment

Name: UL1332 UL2431 SO2 CO2 Gas Corrosion Durability Test Equipment
Brand: Xi'an LIB Environmental Simulation Industry

LIB industry UL1332 UL2431 SO₂ CO₂ gas corrosion durability test equipment accurately simulates corrosive industrial atmospheres to verify the long-term durability of coatings, metal substrates, and outdoor electrical enclosures under UL-specified conditions. The system operates in high-humidity (≈95% RH) and elevated temperature (~40 °C) environments while precisely introducing SO₂ and CO₂, reproducing the wet gas corrosion mechanisms defined in UL1332 and UL50E. Extended exposure—hundreds to 1000 hours as required by UL2431—ensures stable, uniform conditions for reliable evaluation of coating adhesion, blistering, corrosion propagation, and substrate protection.

With high-accuracy gas flow control, SUS316 corrosion-resistant construction, and stable temperature/humidity regulation, LIB industry ensures repeatable, compliant results. Widely used for UL certification, coating validation, product reliability, and quality control.

Standard Models: GCM-100, GCM-225, GCM-500, GCM-800, GCM-1000

Standard: UL1332,UL2431,ISO 6988, ISO 3231, DIN 50018, ASTM G87-02, IEC 60950:22, IEC 60068-2-42, IEC60068-2-60，MIL-STD-810

What Are UL1332 and UL2431 Tests?

UL1332 – Coating Corrosion Resistance
Tests outdoor steel enclosure coatings under high humidity (~95% RH), elevated temperature (~40 °C), SO₂/CO₂ gas, and optional salt spray. Monitors blistering, peeling, cracking, and corrosion over hundreds to ~1000 hours.

UL2431 – Material Durability
Evaluates long-term performance of materials and coatings with humidity/temperature cycling, corrosive gas exposure, and extended continuous testing, ensuring structural integrity and protective performance.

LIB industry Solution
Our SO₂ & CO₂ Gas Corrosion Durability Test Equipment fully supports both UL1332 and UL2431 methods with:

Precise SO₂ / CO₂ gas control
Stable high-humidity and temperature conditions
Long-term continuous operation
Customizable programmable test sequences

With a single system, you can perform UL1332 coating corrosion tests + UL2431 material durability validation, while also generating reliable data for UL50E enclosure protection assessments.

UL1332 UL2431 SO2 CO2 Gas Corrosion Durability Test Equipment Features and Benefits

1. Precise and Stable Environmental Control –

The chamber provides highly accurate regulation of SO₂ and CO₂ gas concentrations, temperature, and humidity, maintaining consistent test conditions throughout long-duration experiments. This ensures that every corrosion durability test meets UL2431 requirements and delivers reliable, repeatable results.

2. Long-Term Durability Testing

Designed for continuous operation from hundreds up to 1000 hours, the allows thorough evaluation of coatings, materials, and substrates under harsh corrosive conditions. It effectively reveals blistering, peeling, cracking, or corrosion propagation, helping engineers optimize material formulations and verify product longevity.

3. Corrosion-Resistant and Robust Construction

Built with SUS316 stainless steel interior and reinforced insulated exterior, the gas corrosion chamber resists chemical attack while providing structural stability. The durable construction ensures minimal maintenance, long service life, and reliable performance even in demanding industrial environments.

4. Flexible Programmable Operation

Equipped with a 7-inch PID touchscreen, the system supports up to 120 programmable test sequences with 100 segments each, including multi-stage temperature, humidity, and gas exposure. Users can easily customize testing cycles for various materials or coatings, streamlining research, quality control, and certification workflows.

Specifications of UL1332 UL2431 SO2 CO2 Gas Corrosion Durability Test Equipment

Model		GCM-500
Internal Dimensions		900800700 (mm) DWH
Overall Dimensions		160013501850 (mm) DWH
Interior Volume		500(L)
Parameter	Temperature Range	15 ℃ ~ 80 ℃
	Temperature Fluctuation	± 0.5 ℃
	Temperature Deviation	± 2.0 ℃
	Humidity	Display
	SO2 concentration	1% of volume of test chamber
	CO2 concentration	1% of volume of test chamber
	Air Change	Automatic control
Structure	Cooling	Cooling system	Mechanical compression refrigeration system,French TECUMSEH compressor
		Refrigerant	R404A
	Heating Element	Nichrome heater
	Controller	Programmable color LCD touch screen controller,Ethernet connection, PC Link
	Sensor	Temp Sensor	PT100Ω / MV A-class
		Humidity Sensor	Dry and wet bulb sensor
		Gas Sensor	SO2 gas sensor and CO2 gas sensor
	Build-in Water Tank(mm)	900800100mm
	View Window Size（mm）	330*370
	Air Circulation	Centrifugal wind fan
	Door Lock	Electromagnetic lock
	Gas Exhaust Device	Gas 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
Exterior material		Steel Plate with protective coating
Power Supply		220V 60Hz 1 phase
Maximum Noise		65 dBA
Standard		UL 2431
Environmental Conditional		5℃～+35 ℃ ≤85% RH

Details of UL1332 UL2431 SO2 CO2 Gas Corrosion Durability Test Equipment


Workspace SUS316 stainless steel workroom, providing superior corrosion resistance and durability. 2 adjustable punched sample racks accommodate multiple test specimens up to 50 kg per layer. The LED-illuminated, double-glass observation window allows clear monitoring without opening the chamber.	Exhaust and Gas Treatment System The waste gas system safely neutralizes SO₂ and CO₂ emissions using a NaOH solution absorption tank. Gas inlet is precisely controlled via electromagnetic valves, and the chamber automatically vents treated gas after testing, ensuring operator safety and environmental compliance.

Air Circulation System High-efficiency centrifugal fan, the system provides top-to-bottom air circulation for uniform temperature and humidity distribution. This ensures consistent test conditions across all sample locations.	Control System A 7-inch PID programmable touchscreen allows full control of temperature, humidity, and gas concentrations. The system supports fixed and programmable operation modes, data logging via USB or Ethernet, and multilingual interface options, enabling precise, repeatable, and user-friendly testing.

Get in touch with LIB industry inquiry@libtestchamber.com to customize your SO₂/CO₂ durability testing solution.Backed by customized configurations, on-site installation, operator training, 3-year warranty, lifetime support, and fast English-speaking service. Contact LIB industry today for a tailored corrosion testing solution.

LIB Team will send you specs and quote today.

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