[ RadSafe ] Depleted Uranium

[John R Johnson]

Jaro et al

One of the difficulties in doing the comparison is that the US is still
using "empirical" units:)! I was told when I worked "down there" in the
'90's that it was going to "happen soon". But the US is still not using the
internationally accepted SI units!

John
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-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl]On
Behalf Of Jaro
Sent: August 29, 2005 6:28 PM
To: RADSAFE
Subject: RE: [ RadSafe ] Depleted Uranium


Incidentally, its interesting to compare US regs to Canadian ones :


http://laws.justice.gc.ca/en/n-28.3/sor-2000-207/154139.html
Nuclear Substances and Radiation Devices Regulations
SOR/2000-207
Registration 31 May, 2000
NUCLEAR SAFETY AND CONTROL ACT
<SNIP>

SCHEDULE
(Section 1)

EXEMPTION QUANTITIES

Column 1                                              Column 2
Radioactive Nuclear Substance          Quantity (in Bq)

<SNIP>
Uranium (natural) in non-dispersable form  1 x 10^7
<END QUOTE>

..............I haven't calculated how much mass 10 MBq of NU represents,
but considering the long half-life, it sounds like it could be quite a bit.

 Jaro
^^^^^^^^^^^^^^^^^^^^^




-----Original Message-----
From: Jaro [mailto:jaro-10kbq at sympatico.ca]
Sent: Monday, August 29, 2005 8:59 PM
To: RADSAFE
Subject: RE: [ RadSafe ] Depleted Uranium


just so you can check it yourself,

http://www.nrc.gov/reading-rm/doc-collections/cfr/part040/part040-0022.html
§ 40.22 Small quantities of source material.
(a) A general license is hereby issued authorizing commercial and industrial
firms, research, educational and medical institutions and Federal, State and
local government agencies to use and transfer not more than fifteen (15)
pounds of source material at any one time for research, development,
educational, commercial or operational purposes. A person authorized to use
or transfer source material, pursuant to this general license, may not
receive more than a total of 150 pounds of source material in any one
calendar year.
<SNIP>

http://www.nrc.gov/reading-rm/doc-collections/cfr/part040/part040-0004.html
§ 40.4 Definitions.
<SNIP>
Source Material means: (1) Uranium or thorium, or any combination thereof,
in any physical or chemical form or (2) ores which contain by weight
one-twentieth of one percent (0.05%) or more of: (i) Uranium, (ii) thorium
or (iii) any combination thereof. Source material does not include special
nuclear material.


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