Charcoal Impregnated HEPA Filters

[mirolies@nbnet.nb.ca (Miroslav Lieskovsk\})]

Dear Radsafers,

We are currently looking for charccoal loaded HEPA filters for industrial
use.  These filters are requested for a certain work to be undertaken in a
very near future, and as it stands now, the only manufacturer we were able
to locate is in Switzerland. Their delivery times are quite long.

As a matter of fact, I also wanted to ask for an info from (but not only)
nuclear power plants staff about some experience with antimony family in the
air (specificaly, Sb-124 and/or 125) and their "alleged" passing through the
normal HEPA Filters.  Is there anybody to contact who could give us a thought.  

Thank you very much in advance.


     Miroslav

PS. Standard disclaimers apply.
---------------------------------------------------------------------------
If I had an opinion, it sure wouldn't be mine... or my employer's!
Nazory nemusia v ziadnom pripade vyjadrovat postoj mojho zamestnavatela, 
ba niekedy ani moje vlastne.
---------------------------------------------------------------------------
Miroslav Lieskovsky                               Health Physics Department
mirolies@nbnet.nb.ca                       Point Lepreau Generating Station
Phone  bus: (506) 659 2220 ext. 7421                    New Brunswick Power
Fax    bus: (506) 659 2003                             P.O. Box 10, Hwy 790
Phone  res: (506) 636 7629                                    Lepreau, N.B.
e-mail res: miroslav@mi.net                                 Canada, E0G 2H0