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Re: Radioiodine Air Sampling

To: radsafe@romulus.ehs.uiuc.edu
Subject: Re: Radioiodine Air Sampling
From: "William A. Fendt" <35346@strauss.udel.edu>
Date: Wed, 12 Oct 1994 09:21:36 -0400 (EDT)
Cc: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
In-Reply-To: <00985C8B.BF52BDA0.210@msu.oscs.montana.edu>

Save lots of money and make your own charcoal samplers.  We use "drying 
tubes" (see any lab catalog) filled with activated carbon purchased by 
the pound.  We pack two stages of carbon in each tube separated by floss 
in order to determine sampler efficiency.  Also if you pack your own 
samplers, you can calculated and use the correct charcoal bed depth to 
attain the suggested air residence time in the sampler of .125 to .25 
seconds.  We use this type sampler for flow rates up to
about 12 
LPM for short sampling times (1 - 14 days depending on flow rate, 
humidity, etc.).

If you still want a prepacked tube, SKC makes them.
Bill Fendt U of Delaware.

References:
- Radioiodine Air Sampling
  - From: Erick Lindstrom <avrel@trex.oscs.montana.edu>

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