“Compression chamber” means a pressure vessel that is suitable for human occupancy at internal pressures greater than atmospheric pressure (caisson de compression ou compartiment de compression).
Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. Regulations
Source: Nova Scotia Offshore Area Petroleum Diving Regulations, SOR/95-189, Canada, current to May 31, 2012. Regulations