Do You Need To Evaluate The Relative Corrosion Resistance Of Coatings, Substrates, Or Parts?

Do you need to run the S02 test without human intervention?

The Ascott KH300 – Fully Automatic, SO2 Gas Dosing Test Chamber Fully Complies With A Wide Range Of Test Standards

Video Overview of the SO2 Humidity Chamber

Kesternich testing simulates acid rain or industrial chemical exposure to evaluate the relative corrosion resistance of the coating, substrate, or part itself. Parts or panels are placed inside a specially designed chamber and are exposed to SO2 and condensation humidity before being evaluated for resistance to corrosion.

A specific volume of SO2 gas, usually 0.2L, 1L or 2L is introduced into the test chamber, the chamber temperature is increased to a predetermined level and the relative humidity is maintained at condensation levels. After a set period, the chamber is vented, and the temperature is allowed to decrease to ambient conditions.

Ascott’s Kesternich chamber does not require any human intervention whilst running the tests, its fully automatic design is controlled by a state-of-the-art control system. The Kesternich chamber is designed to meet various gas dosing test standards as listed below and can also be used as a condensation humidity chamber.


  • Volume: 300L
  • Internal Dimensions: 730 x 496 x 851 reducing to 534mm (w x d x h) angled interior roof to avoid droplets.
  • External Dimensions: 1200 x 760 x 2000mm (w x d x h)
  • Temperature Range: Ambient to +50ºC/122ºF
  • Temperature Stability: +/- 0.75ºC
  • Power Supply: 220-240V, Single Phase 50Hz

The KH300 fully complies with a wide range of Test Standards including:

• ASTM D2247

• ISO 11503

• NFT 30-077

• NFT 30-055

• ASTM G87 BS3900/ F9 ISO 6270-2 CH