Re: H-3 Exit Signs

["Robert A. Jones" <raj6582@acs.tamu.edu>]

Scott Crail wrote:
> 
> Back when I was an undergrad(several years now), I assisted the rad safety
> department at Cal Poly Pomona install the H3 exit signs there.  Aside
> from the initial wipe they seemed fine.  I think I remember that each
> letter is a seperate sealed container, so it would take an effort to get
> them all.  The risk they pose is mainly internal, so unless that
> overzealous hardhat type suddenly got thirsty, even a broken one shouldnt be too bad.  Plus compare them to the risks
> associated with with battery operated (acid spills) or generator operated
> (fires, ect) before you decide.  If you want to talk to someone who has
> been dealing with them for a while call Dave Patterson over at Cal Poly's
> Environmental Health Dept.
> 
> Scott Crail
> Grad Student, OSU
> crail@engr.orst.edu
> 
> On Wed, 27 Mar 1996, Jeff Mueller wrote:
> 
> > Has anyone out there had the joy of dealing with a significantly damaged
> > (i.e., internal tubes smashed open by an overzealous hard-hat type) H-3 exit
> > sign in a heavily trafficked area, such as a university library?
> >
> > We're trying to convince our Facilities Department that these signs could be
> > more trouble than they are worth.
> >
> > Thanks...
> >
> >
> >
> >
> > 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>
> >   Jeffrey S. Mueller, M.S., CHP                  E-mail = jmueller@ucla.edu
> >   UCLA Radiation Safety Office                Telephone = 310/206-8204
> >   1010 Veteran Avenue, 2195 WMB                     FAX = 310/206-9051
> >   Box 951765                                      Pager = 800/233-7231 #93565
> >   Los Angeles, CA 90095-1765
> > <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> >
> >


Also look at the risk of not having an exit sign visible when power is 
out, say during a fire, with poor maintenance (not checking backup power 
supplies for the electric ones) possiblities.  I would imagine a one-time 
wipe test (after installation or even after any major building refit) 
would be enough to establish that the tritium signs are safe.  (when you 
compare all the risks)
-- 
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Robert A. Jones
2909 B. Prairie Flower Circle
Bryan, TX  77802
Phone:  (409) 731-8219
RAJ6582@ACS.TAMU.edu

"The Walls have ears and mouths" - Me

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