A Canadian company, Yeadon Domes, is in discussion with our Health and Safety people. The company sells air-supported structures and is resolutely non-metric. (I think their site www.yeadondomes.com uses metric once as a supplementary measure). They have produce a statement ref air flow with the rates being quoted in cubic feet at 1"W.C. and 1.25"W.C. Assuming the flow rate is nothing to do with flushing toilets, we can only guess that this some sort of overpressure measurement
- [USMA:12330] RE: "WC Ian Moseley
- [USMA:12330] RE: "WC Dennis Brownridge
