Environmental Chambers

Environmental Chambers for a Local West Michigan Manufacturer - R&D Division

The mechanical system, including controls, refrigeration, heating, humidification, and dehumidification, is custom designed and installed to meet the parameters and procedures listed below.

Equipment Sizing

• Equipment sized for up to 3,000# of wood product per test
• The parameters for these testing cycles are:
  • Humid: 85% ± 5% Relative Humidity, 80°F ± 3.6°F
  • Hot: Temperature increases from 76 ± 6°F to 137 + 5/- 0°F over a 9 hour period and then decreases to 76 ± 6°F over the next 15 hours. The cycle is then repeated. Humidity is not controlled.
  • Cold: 0°F ± 3.6°F, humidity not controlled
  • Dry: 15% ± 10% R.H., 78°F. ± 3.6°F
• The testing process is as follows:
  • Humid for (4) days
  • Hot for (2) days
  • Humid for (4) days
  • Cold for (1) day
  • Dry room for (2 to 3) days
  • 13-14 day total cycle per test
  • Product ranges from woods to metals to fabrics with varying sizes from handheld to room-filled
  • Process heat up / cool down time 9 hours per test, 15 hour cool down on hot cycle