Sulfur Dioxide Test Chamber

1.1 Name

1.2 Model

Sulfur Dioxide Test Chamber

G-AHL-90-SO2

2. Application and Description

2.1 Scope of Application

1.This equipment is suitable for environmental simulation reliability tests, such as evaluating the corrosion resistance of products or metal materials under artificially simulated salt spray conditions.

2.Using this equipment for purposes other than the above may cause personal injury or equipment damage.

2.2 Specimen Restrictions

1.Testing or storing specimens that are flammable, explosive, or highly volatile.

2.Testing or storing specimens with strong electromagnetic emission sources.

3. Volume and Dimensions

3.1 Inner Chamber Dimensions

(W)900mm*(H)500mm*(D)600mm

3.2 Outer Chamber Dimensions

(W)1460mm*(H)1280mm*(D)910mm   

3.3 Volume

Chamber volume: 324 L

4. Performance

4.1 Temperature Control Method

Waterless temperature control with five-sided heating is adopted, significantly improving

4.2 Requirements

Air compressor (5–6 kg/cm²)

4.3 Temperature/Humidity Range

Temperature: 35℃ to 50℃
Saturation tank temperature: 47℃ to 63℃

4.4 Temperature Fluctuation

Temperature fluctuation: ±0.5℃
Saturation tank temperature fluctuation: ±0.5℃

4.5 Temperature Deviation

Temperature: ≤ ±1℃

4.6 Temperature Uniformity

≤2℃

4.9 Settling Rate

1~2ml/80cm² 1hr

4.10 Spray Method

Compressed air spray tower method
Optional: Continuous / Cyclic spray
Selectable test duration: 1–999 H, M, S (adjustable)

4.11 Spray Pressure

1±0.1kg/cm²

4.11除雾方式

Air generated by the compressor enters the test chamber to disperse excess fog. The gas is discharged through the exhaust holes at the back of the chamber, keeping the chamber cover free of fog and condensation, allowing clear observation of the corrosion status inside the chamber.

4.12 Applicable Standards and Equipment Compliance

GB/T 10125-1997: "Corrosion Tests in Artificial Atmospheres – Salt Spray Test"
GB/T 10587-2006: "Technical Conditions for Salt Spray Test Chambers"
GB/T 1771-2007: "Paints and Varnishes – Determination of Resistance to Neutral Salt Spray"
GB10593.2-1990: "Measurement Methods for Environmental Parameters of Electrical and Electronic Products"
QB/T 3826-1999: "Neutral Salt Spray Test Method (NSS) for Corrosion Resistance of Metal Coatings and Chemical Treatment Layers of Light Industry Products"
QB/T 3827-1999: "Acetic Acid Salt Spray Test Method (ASS) for Corrosion Resistance of Metal Coatings and Chemical Treatment Layers of Light Industry Products"
GB/T 12967.3-2008: "Detection Methods for Anodized Coatings on Aluminum and Aluminum Alloys – Part 3: Copper Accelerated Acetic Acid Salt Spray Test (CASS)"
GB 5226.1: Safety of Machinery – Electrical Equipment of Machines – Part 1: General Requirements

4.13 Common Test Conditions

4.14Sulfur Dioxide and Carbon Dioxide Test Conditions

1. Neutral salt spray test for 2 hours, followed by drying under laboratory conditions for 22 hours.

2. NO₂ concentration 10×10⁻⁶, SO₂ concentration 5×10⁻⁶, humidity 95%, temperature 25℃, test duration 48 hours.

3. Neutral salt spray test for 2 hours, followed by drying under laboratory conditions for 22 hours.

NO₂ concentration 10×10⁻⁶, SO₂ concentration 5×10⁻⁶, humidity 95%, temperature 25℃, test duration 72 hours.