At 07:01 PM 3/13/96 -0700, you wrote: >Hi All, > >>I checked with the local newsroom to get info about relative humidity >>readings here in Dallas. I was informed that the average in Feb. was about >>72% at midnight and 54% at 6:00 A.M. According to the newspaper the rel >>hum. readings on Tuesday, March 12 were 41% at midnight, 60% at 6 A.M., >>33% at 11 A.M., 27% at 1 P.M. 25% at 3 P.M. and 44% at 6 P.M. >> >>F. Yonley >> >Did you use a compensation formula--i.e. the numbers above are for outside not inside. You must take these figures and adjust them for the temperature inside the building. I have the formula hiding in a filing cabinet somewhere but you probably could get > >it from the local weather office (try the airport). > >Even without adjustment your readings of 27% and 33% are below what Steinway would recommend. > >Regards, Don Rose drose@saskmaple.net > > Dear Don, What is the compensation formula? I use a digital hygrometer/thermometer that I got from Radio Shack to measure indoor temperature and relative humidity. It works well for me. Also, what would Steinway recommend as to the low and high humidity levels that a piano should be subjected to? Sincerely, David A. Vanderhoofven dkvander@clandjop.com Joplin, Missouri, USA Associate Member, Piano Technicians Guild web page: http://www.clandjop.com/~dkvander/
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