Description
1. Overview of the main functions of the Sulfur Dioxide Chamber
This environmental test chamber simulates corrosion tests in artificial environments and is suitable for determining the adaptability of electrical and electronic products and their materials under chemical corrosion conditions and for testing the quality of metal materials with or without anti-corrosion protection; it is suitable for rapid analysis of organic and inorganic coatings in anti-corrosion tests for discontinuities, holes and damage, etc. In addition, for the purpose of quality control, it can be compared between samples coated with the same coating; salt spray test chambers are particularly suitable for detecting discontinuities such as pinholes and other defects in certain metals, organics, anodic oxidation and conversion coatings; among them
Neutral salt spray corrosion test (NSS) is suitable for (metals and their alloys, metal coatings (anode and cathode), conversion coatings, anodic oxidation coatings, organic coatings on metal materials);
Acetic acid salt fog test chamber (AASS) is particularly suitable for testing copper + nickel + chromium, or nickel + chromium decorative coatings; it is also found to be suitable for testing aluminum anodic coatings;
Copper accelerated acetic acid salt spray test (CASS) is suitable for testing copper + nickel + chromium, or nickel + chromium decorative coatings; it is also found to be suitable for testing aluminum anodic coatings; It is now applicable to the testing of aluminum anodic coatings;
Test methods for high concentration sulfur dioxide chamber tests;
Note: Since there are many factors affecting the corrosion process, such as the formation of protective films, which vary greatly with the different conditions encountered, there is rarely a direct relationship between resistance to salt spray and resistance to other media; therefore, the test results obtained cannot be used as a direct guide to the corrosion resistance of the tested metal materials in all possible environments. Similarly, the performance of different materials in the test cannot be used as a direct guide to the corrosion resistance of these materials in use.
2. Detailed introduction of the Sulfur Dioxide Chamber
| 1. Product Name | Sulfur dioxide salt spray test chamber | |
| 2. Product model
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| model | PW-CS270-SO2 | PW-CS600-SO2 |
| Inner dimensions D×W×Hmm | 900×600×500 | 1200×1000×500 |
| Overall dimensions D×W×Hmm | 2200×900×1100 | 2500×1300×1400 |
| Temperature range | RT+10℃ ～ 70℃ | |
| Relative humidity | 85%~95%RH | |
| Humidity uniformity | ±1.0℃ | |
| Humidity fluctuation | ±0.5℃ | |
| Gas concentration | High concentration 0.05～1% (volume percentage) | |
| Air intake method | Cylinder type, fixed gas method | |
| Exhaust gas connection | Φ63mm | |
| Exhaust gas composition | Weakly alkaline high humidity gas, non-toxic and harmless (after exhaust gas treatment) | |
| power | 2.5KW | 3.5KW |
| Voltage | AC220V/50HZ | AC220V/50HZ |
| 3. Sample Limitation | This test equipment is prohibited from: Testing or storing samples of flammable, explosive, volatile substances Testing or storing samples of corrosive substances
Testing or storage of biological samples Testing or storage of samples with strong electromagnetic radiation sources Testing or storage of samples with radioactive materials Testing or storage of samples with highly toxic substances Testing or storage of samples that may produce highly toxic substances during storage |
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| 4. Volume, dimensions and weight | ||
| 4.1. Nominal volume | 600L | |
| 4. 2. Inner box dimensions (mm) | 1200X1000X500mm width, depth and height (excluding the height of the inclined roof)
Note: The top angle is 100° |
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| 4. 3. Outer box dimensions (mm) | About 2500X1300X1400mm width, depth and height (excluding the height of the inclined roof) | |
| 4.4. Net weight of equipment | About 350kg | |
Product Advantages
High-Precision Environmental Simulation
The chamber supports stable SO₂ gas release and temperature control within defined ranges, enabling users to simulate long-term material degradation accurately. This reliability makes it ideal for consistent salt fog test chamber assessments used in research and compliance.
Durable Chamber Design with Safety Focus
Built using corrosion-resistant interior walls and a leak-proof exterior structure, the unit resists SO₂ damage and ensures lab safety. Protective features include over-temperature shutoff, gas leak alarms, and sealed electrical systems — all vital for any humidity chamber operating in corrosive environments.
Customizable Testing Options
Equipped with adjustable SO₂ concentration levels, temperature profiles, and timing modes, the chamber supports diverse applications including salt spray corrosion test chamber procedures. Its modular structure allows for customization based on user testing standards and product dimensions.
About Us
PW is a leading manufacturer of precision testing equipment, specializing in environmental chambers, universal testing machines, and advanced mechanical test solutions. With over two decades of expertise, we serve industries including aerospace, automotive, electronics, packaging, and scientific research. Our mission is to deliver highly accurate, durable, and user-friendly equipment that ensures product quality and compliance with international standards. PW’s R&D and quality assurance systems are rooted in ISO and CE certifications, while our global service network supports customers in more than 60 countries. Whether for temperature humidity test chamber needs or complex corrosion testing, PW provides reliable, customizable solutions trusted by testing professionals worldwide.
Contact us today to configure your sulfur dioxide chamber for precise, compliant corrosion testing.
FAQ
What materials can be tested in the sulfur dioxide chamber?
The chamber supports testing on metals, coatings, plastics, electronic components, and painted surfaces for corrosion performance in SO₂ environments.
Does the chamber meet international corrosion testing standards?
Yes, it complies with relevant GB/T and ISO standards for accelerated corrosion testing using sulfur dioxide gas and humidity control.
Can SO₂ concentration be adjusted during testing?
Yes, the system allows for controlled and adjustable gas concentration levels to match specific testing protocols.
Is it safe to operate in laboratory environments?
Absolutely. It includes SO₂ gas containment, leak detection, over-temperature protection, and ventilation to ensure safe daily use.
What is the chamber’s temperature range?
Typical temperature control ranges from ambient up to 50–60°C, depending on the model. Custom configurations are available upon request.
