Hi Fred, Did you try the web? http://www.bigelow.org/virtual/handson/humidity.html Be aware that barometry pressure affects the readings. You will need *several* pages of charts for greatest accuracy. It would be wonderful if one of our spreadsheet guru's would do a formula for us all to use that included the barometric pressure. There are formula's but my spread sheet experience is nearly zero. At 08:34 AM 3/1/02 -0700, you wrote: >Can anyone point me to a reasonably complete chart of temps/humidity >levels for a sling psychrometer? The chart I got with mine (ten years or >so ago) lacked numbers below something like 25%. I really just need for >dry bulb in the range of 65 to 75 degrees. >Thanks, >Fred Sturm >University of New Mexico > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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