[CAUT] RH? Please enlighten me.

[Porritt, David]

http://en.wikipedia.org/wiki/Relative_humidity

dp


David M. Porritt, RPT
dporritt at smu.edu<mailto:dporritt at smu.edu>

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jim Busby
Sent: Tuesday, December 09, 2008 11:30 AM
To: caut at ptg.org
Subject: [CAUT] RH? Please enlighten me.

List,

The recent post on relative humidity has me wondering what RH really means. Don Ms funny post about "death" with humidity being too low shows that many (myself included) don't understand RH.

For instance, when I heard that the RH was 100% in Louisiana I figured the whole state was under water.

And, obviously life can be sustained when RH registers at near zero, as is does occasionally in our music building. (Interestingly the static electricity in such low humidity makes it essential that you "discharge" the charge in your body before touching an ETD, or before pumping gas, as multiple fires at gas stations have shown.)

Any scientifically minded tech out there care to enlighten me?

Thanks.
Jim Busby
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