In-cabinet Exposure Condensation Chamber
GD 876 In-cabinet Exposure Condensation Chamber is designed according to ISO 6270-2 (Paints and varnishes – Determination of resistance to humidity – Part 2: Condensation (in-cabinet exposure with heated water reservoir)). This standard is different from Part 1 "Continuous condensation"; but defines three cyclic programs: CH (Condensation atmosphere with constant humidity), AHT (Condensation atmosphere with alternating humidity and air temperature), and AT (Condensation atmosphere with alternating air temperature) to simulate different humidity environments.
It can give much better supplements and explanation for corrosion degree and defect types of coating used in different environments. Comparing to Part 1—single-sided exposure, this method adds a condensation atmosphere with alternating humidity and air temperature, and mainly used to evaluate paints' anti-corrosion ability under different environments.
- Designed with an automatic ventilator, can control chamber ventilation automatically.
- Designed with an automatic ventilator, can control chamber ventilation automatically.
- Automatic water supply.
- Protector for water temperature ceiling.
- A glass observation window is designed in the chamber, allowing the operator to observe specimens' test status directly.
Main Technical Parameters:
- Test Specimens Capacity: 20 pcs (150mm × 70mm standard size)
- Temperature Range of Working Room: RT - 60°C (Dry or condensation)
- Overall Size: 800mm × 750mm × 1420mm (L × W × H)
- Weight: 180KG
- Power: 220V 50HZ/60HZ, Max, power of machine: 2.0KW
Condensation Test Atmospheres
| Test Atmosphere | Cycle Duration | Conditions in Working Chamber After Reaching Equilibrium |
|---|---|---|
| Constant-humidity condensation atmosphere | CH |
Test Period (s): From warm-up to end of exposure Total: -- Air Temperature: 40 ± 3 °C Relative Humidity: Approx. 100% with condensation on test specimens |
| Alternating condensation atmosphere | AHT |
Test Period (s): 15h including cooling down (chamber open or ventilated) Total: 24h Air Temperature: 40 ± 3 °C Relative Humidity: Approx. 100% with condensation on test specimens |
| With alternation of humidity and air temperature | AT |
Test Period (s): 8h including warm-up Total: 16h Air Temperature: 18 °C to 28 °C Relative Humidity: Approaching ambient |
