[Histonet] Lab humidity range

Rene J Buesa rjbuesa <@t> yahoo.com
Fri Jul 15 10:08:39 CDT 2011






The only instruments that could be affected by HIGH humidity are those with electronic relays that could get "humid" and fail.
This is something that is taken care off by the A/C systems in any laboratory so I do not think that any usual instrument will be affected by humidity.
Another thing will be anhydrous chemicals which will require heat dehydration if humidified.
As to the range you have 2 choices: ask your maintenance departments the range they set to their A/C - dehumidifying systems, or ask your local meteorological station to give you the historic humidity ranges for your area.
René J.

--- On Thu, 7/14/11, Breeden, Sara <sbreeden <@t> nmda.nmsu.edu> wrote:


From: Breeden, Sara <sbreeden <@t> nmda.nmsu.edu>
Subject: [Histonet] Lab humidity range
To: Histonet <@t> lists.utsouthwestern.edu
Cc: "Hanosh, Timothy J." <thanosh <@t> msn.com>, "Jillson, Gregory" <GJillson <@t> nmda.nmsu.edu>
Date: Thursday, July 14, 2011, 2:23 PM


We're prepping for a Big Inspection (I could tell you who but then I'd
have to enter the Witness Protection Program).  The Inspecting
Organization will want me to cite a range for HUMIDITY in the lab.
Because this not only hinges on our weather (we're in Monsoon Season
right now and the lab humidity is 47% as I write but is normally between
17-20%), but also MUST be based on any of the histology equipment that
may be affected by humidity in any way.   Realizing that we all work in
different "environments" and usually have little or no control over the
HVAC system, what did you decide upon as your HUMIDITY RANGE for the SOP
under which you operate?  If there are no specific equipment
requirements, I will be able to give a range of 0-100% without the
necessity for a Corrective Action Report.  If I am too specific and give
too narrow a range, I may end up filling out a Corrective Action Report
for days when I'm "out of range".  Please give me as much detail as you
are able, without being required to join me in hiding.  Your input will
be rewarded (don't ask).



Sally Breeden, HT(ASCP)

New Mexico Department of Agriculture

Veterinary Diagnostic Services

1101 Camino de Salud NE

Albuquerque, NM  87102

505-383-9278 (Histology Lab)



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