[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: "Tritium on Ice"



Mr. Arland is correct in that the US NRC has the sole authority to approve

of products containing byproduct radioactive material for distribution to

persons exempt from licensing.  They do have a clause in their regulations

stating that 'frivolous use' items that will not be approved.  So novelty

items or products that work equally well without radioactive material might

have a hard time passing acceptance unless there is a demonstrated benefit

for the risks posed by the product.  Tritium labeled gun sites are the best

example I can think of where the line has been drawn in that a nominal

quantity of H-3 has been allowed to be distributed in aids to weapon owners

(largely the US Army).  I suspect there are gray areas on either side of

that line that may or may not get approval



The thoughts expressed are mine, mine, all mine....

I'm with the government, I'm here to help

Daren Perrero

perrero@idns.state.il.us





-----Original Message-----

From: Carsten, Arland L [mailto:carsten@BNL.GOV]

Sent: Wednesday, October 09, 2002 4:14 PM

To: Richard L. Hess

Cc: radsafe@list.vanderbilt.edu

Subject: Re: "Tritium on Ice"





Richard L. Hess



In answer to your  question about U.S. vs Europe limits.  I can't give you a

reliable answer to your question. I believe that the NRC approves consumer

products

on an "item by item" basis which includes dose, risk, etc., which could well

rule

out a single item unless it had been put through the process.   The NCRP

Handbook

95,  on Consumer Products,  Chapter 3.1  has a lot of information on

radioluminous

products.  The ICRP publication 60,  "1990 Recommendations of the

International

Commission on Radiological Protection" gives some general information on the

"International" view on allowable doses etc. for comparison with U.S.

limits.



A couple of other references on tritium that might be of interest are;



 Proceedings of  "European Seminar on the Risks From Tritium Exposure", 1982

held

by the Commission of the European Communities. The report information is -

EUR 9065

en, 1982



The 400 page book "Tritium-labelled Molecules in Biology and Medicine" by

Feinendegen, Academic Press, 1967 gives a lot of excellent basic

information.



Sorry I can't be of more help.



Arland (Red) Carsten



"Richard L. Hess" wrote:



> At 04:56 PM 10/4/2002 -0400, Dr. Arland L Carsten wrote:

> >This is obviously a general comment to all that expressed interest in

tritium.

>

> ...and lots of great stuff that I snipped.

>

> A simple question (I hope). Why is the U.S. limit on the amount of tritium

> tighter than the limit in Europe? There are glow-fobs that are available

in

> Europe that are not allowed to be sold in the U.S.

>

> Thanks!

>

> Richard

************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/

************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/