Jerry, Activated charcoal sensors for radon gas use the 24 hour format in the US for start and stop times. These times are written in by the home owner, not by a professional.
We recently exposed two radon sensors in our basement. The first sensor revealed three times the "safe level." The second follow-up result is yet to be reported by a lab in North Carolina. The analysis is done by professionals. Gene. ---- Original message ---- >Date: Sun, 1 Feb 2009 15:12:28 -0800 (PST) >From: Jeremiah MacGregor <[email protected]> >Subject: [USMA:42799] Re: Hot and dry >To: "U.S. Metric Association" <[email protected]> >... > In the US, we call the 24 h time > format as military time. It is because the only > time it is used in the US is by the military, at > least as far as the public is aware of. > > Jerry
