Re: Humidity

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From:"Barry Rittman" <> (by way of histonet)
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Hi Peter and Sarah,
I am also in Texas (wasn't born here but came here as soon as I could!).
The fact that plants do so well in east Texas is the high humidity. It is
also advantagous for humans who like to sweat. As Sarah said our outisde
humidity can brutal because of the associated heat.
Humidity in our labs varies considerably and I suspect in most labs that do
not operate on weekends. The air handling to our building is kept at a
minimal level over weekends and holidays to save money. This means that on
Mondays the humidity is high (and oxygen levels low)and by WQednesday is at
an acceptable level. Air handling will be lefy on if requested for specific
Levels in the 50-60% RH range. We would prefer moderate levels all the time
because of our computers.
If you are measuring relative humidity to be accurate you really should not
rely on a wall or desk unit except for rough comparisons. For accurate
readings use a swing psychrometer.

At 03:18 PM 11/16/1999 -0600, you wrote:
>Dear Peter,
>   It is 64% humidity in our lab today.  We are usually hot and steamy
here in East Texas but since we are 16 inches below in rainfall this year
we aren't quite as steamy.  Sarah
>Sarah Christo, HT (ASCP)
>Texas A&M University
>College of Veterinary Medicine
>Dept. of Vet. Anatomy & Public Health
>Histology Laboratory
>College Station, TX  77868-4458
>phone (409) 845-3177
>fax (409) 847-8981
>>>> "Peter A. Takes" <> 11/16 2:15 PM >>>
> For those who track this sort of thing, I was wondering what the
>average laboratory (histology and non-histology) humidity levels are in
>the hospital environment.  Obviously, there will likely be some
>geographic differences.  If you have this type of information, it would
>be helpful.
>Peter A. Takes, Ph.D., RAC
>Director, Clinical & Regulatory Affairs
>Ph. 1-314-615-6964; Pager 1-314-841-9351

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