Dear RADSAFERS - Is use of portable G-M survey meters to detect tritium activity, say in the form of tritiated water vapor, feasible or even possible? I'm inclined to say no, even with thin-window G-M meters, but am interested in hearing your input. Thanks, Steve Frey, CHP, EH&S Director Andotek, Inc. Phone: (800) 888-7008 Stevenfrey@aol.com