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Sulfur Dioxide (SO₂) Humidity Test Chamber

Sulfur Dioxide (SO₂) Humidity Test Chamber

This Sulfur Dioxide Humidity Test Chamber is designed to evaluate the corrosion resistance of materials and their protective coatings, compare the quality of similar protective processes, and assess the anti-corrosion performance of certain products.

 

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Compliance Standards

  • The chamber is manufactured in accordance with:
  • GB/T 9789-88 – Corrosion Tests in Artificial Atmospheres Containing Sulfur Dioxide
  • DIN 50018 – Testing in a Saturated Atmosphere in the Presence of Sulfur Dioxide
  • Other relevant standards for corrosion testing using sulfur dioxide (SO₂) and hydrogen sulfide (H₂S) gases.

 

Technical Specifications

  • Temperature Range: RT +10°C ~ 50°C
  • Humidity Range: 85% ~ 98% R.H.
  • Temperature Uniformity: ≤ 2°C
  • Temperature Fluctuation: ±0.5°C
  • Gas Generation Method: Gas cylinder (SO₂ supply included)
  • SO₂ Concentration: 0.1% ~ 1% (by volume)

 

Outer Shell Material: Reinforced PVC hard plastic plate, smooth and corrosion-resistant.

 

Inner Chamber Material: PVC plastic panel.

 

Transparent Cover: Made of high-impact imported transparent material for easy observation of test samples.

 

Sealing System: Water-sealed lid to prevent gas leakage.

 

Pneumatic Lid Mechanism: Effortless opening and closing with gas struts.

 

Heating System: Water tank heating for fast and uniform temperature distribution.

 

Included Accessories: One SO₂ gas cylinder (with regulator).

 

Heating & Temperature Control

  • Heating Element: U-shaped titanium alloy heating tube for rapid heating.
  • Control System: High-precision PID digital temperature controller.
  • Temperature Accuracy: ±0.1°C.
  • Temperature Sensor: PT100 platinum resistance thermometer.
  • Timer Setting: 0–999 hours (adjustable in hours, minutes, seconds).

 

SO₂ Concentration Control

  • Gas Concentration Regulation: Controlled via a metering float system.
  • Automatic Gas Circulation: Ensures uniform distribution inside the chamber.
  • Corrosion-Resistant Tubing: Silicone gas delivery pipes.
  • Exhaust System: Plastic centrifugal fan for safe gas expulsion.

 

Safety & Protection Features

  • Over-temperature & low-water protection
  • Fuse-less circuit breaker (overload & leakage protection)
  • Test status indicators (operation/end)
  • Waste gas treatment: Activated carbon + soda lime filtration before external exhaust.

 

Operating Conditions

  • Ambient Temperature: 5°C ~ 28°C
  • Ambient Humidity: ≤85% RH
  • Power Supply: AC 220V, 50Hz
  • Power Consumption: 4kW
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Sulfur Dioxide (SO₂) Humidity Test Chamber

This Sulfur Dioxide Humidity Test Chamber is designed to evaluate the corrosion resistance of materials and their protective coatings, compare the quality of similar protective processes, and assess the anti-corrosion performance of certain products.  

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