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RE: NUREG-1608
Rodney:
NUREG-1608 can be viewed at the following website:
http://www.rampac.com/NRCinfo/nrc_info_notices_and_bulletins.htm
Joe Christy
SLAC OHP Department
LLW/MLLW Coordinator
650-926-2823
jchristy@slac.stanford.edu
-----Original Message-----
From: Bauman, Rodney L. (84U) [mailto:84u@BECHTELJACOBS.ORG]
Sent: Thursday, September 20, 2001 6:12 AM
To: 'William V Lipton'; Joe Heckman
Cc: radsafe@list.vanderbilt.edu
Subject: NUREG-1608
Anyone know where I can obtain an electronic copy of NUREG-1608. I checked
the NRC's website - it skips from 1603 to 1609.
Thanks, Rodney
Rodney Bauman, CHP, RRPT
Bechtel Jacobs Company, LLC
Project Health Physicist
ETTP and Y-12 Waste Operations
Y-12 Plant Bldg. 9624, MS 8222
Voice: 865.241.5344
Pager: 865.417.0561
Fax: 865.576.3946
84u@bechteljacobs.org
> -----Original Message-----
> From: William V Lipton [SMTP:liptonw@DTEENERGY.COM]
> Sent: Thursday, September 20, 2001 7:31 AM
> To: Joe Heckman
> Cc: radsafe@list.vanderbilt.edu
> Subject: Re: Contaminated Scaffold Knuckles - Turkey Point
>
> This must be used with caution.
>
> The bad news:
>
> 1. Read the regulations carefully: Here are the key definitions from 49
> CFR
> 173.403:
>
> "Radioactive material" means any material having a SPECIFIC ACTIVIY
> [emphasis
> mine] greater than 70 Bq per gram (0.002 microcurie per gram)(see
> definition of
> "specific activity").
>
> "Specific activity" of a radionuclide means the activity of the
> radionuclide per
> unit mass of THAT RADIONUCLIDE [emphasis mine]. The specific activty of a
> material in which the radionuclide is essentially uniformly distributed is
> the
> activity per unit mass of the material.
>
> The standard, "essentially uniformly distributed" is discussed in
> NUREG-1608/RADREG-003, "Categorizing and Transporting Low Specific
> Activity
> Materials and Surface Contaminated Objects." It is a very rigorous
> standard.
> (A less rigorous term, "distributed throughout," is used in some
> definitions.)
> Distributed throughout gives you some leeway, but essentially evenly
> distributed
> does not. Although there is no quantitative definition of these terms,
> NUREG-1608 guidance states that for the material to be considered
> essentially
> evenly distributed, the specific activity among 0.1 m3 volumes should not
> vary
> by more than a factor of 3. Thus, materials with surface contamination
> cannot
> be considered having their activity essentially evenly distributed.
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