Re: DECAY-IN-STORAGE

["FS BUSBY BRUCE A" <BUSBBRUC@fs.isu.edu>]

Oh... decay in storage.  We have been decaying our solid and liquid P-
32, P-33, S-35 and I-125 prior to disposal for 10 half-lives.  
Prior to disposal, the containers are surveyed/sampled.  We also 
use 5 gal carboys in our waste room for liquids, and put them in lab 
tubs for a secondary container.  Once the liquid is disposed of, we 
re-use the carboys. Solid waste is bagged and put in 55 gal drums 
(s-35, I-125) or in tubs also (P-32).  We had to ammend our license 
to 120 day half-life decay, but it is worth the hassel.
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Bruce Busby
Idaho State University
Radiation Safety Office

All opinions are mine,
so take them with 
0.064799 grams of NaCl   

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