[ RadSafe ] Suggestion about timming for first responder wearing protective mask/cloth

[Marty.Bourquin at grace.com]

Remember with the new update on protection factors from OSHA, what the
manufacturer claims the protection factor is is pretty much irrelevant. 
You had better use the factor in the new guidance.

Martin W. Bourquin
Manager - EHS
W.R. Grace & Co
Chattanooga, TN  37406
423-697-8216


-----Original Message-----
From: acastella2003 at yahoo.com.ar [mailto:acastella2003 at yahoo.com.ar]
Sent: Monday, September 18, 2006 7:07 PM
To: radsafe at radlab.nl
Subject: Rv: Re: [ RadSafe ] Suggestion about timming for first
responder wearing protective mask/cloth 


For respiratory purposes, you could contact 3M, or your provider,
because what is important, is the protection factor the mask gives.
  For semi-masks, like COMFO II(MSA), the manufacturer say that with the
mask correctly used, the Protection Factor is 10 ( relationship between
the environment concentration and concentration that worker breaths).
  For complete face masks, this factor is 100.
  I hope this helps.


            
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