Re: Status of ANSI N13.12 (1987)

[LIPTONW@detroitedison.com]

more like 20 years:  I first remember seeing a proposed standard in 1976! 
 
Bill Lipton 
The opinions expressed are strictly mine. 
Here's to a risk free world, and other fantasies.

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• To: Multiple,recipients,of,list,radsafe@romulus.ehs.uiuc.edu
• Subject: Re: Status of ANSI N13.12 (1987)
• From: "radsafe@romulus.ehs.uiuc.edu" <radsafe@romulus.ehs.uiuc.edu>
• Date: 20 Sep 96 09:02:27
• Reply-to: radsafe@romulus.ehs.uiuc.edu

This ANSI has been in development for at least 5 years.  To much politics I
would guess.  You might want to look at DOE Order 5400.5 or what I consider
a perfectly good standard "Surface Contamination Decision Levels", where
they did the basic math and dose calculations 20 years ago.



At 04:06 AM 9/20/96 -0500, you wrote:
>     Does anyone know the status of ANSI N13.12 (1987)?  I am particularly 
>     interested in the Guidelines for Radioactive Surface Contamination 
>     presented in the draft of that standard; the following is a partial 
>     excerpt.  Are these numbers "risk based" or performance based?
>     
>     
>     Group No.          Group Description               Activity Guide
>                                                        (dpm/100 cm2)
>                                                        Removable   Total
>     
>     (4)                Uranium (natural, depleted,        200      1,000
>                        enriched [<10%], Thorium
>                        (natural)
>
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Chuck Peper   MS J595
    CST-14  Low Level Radioactive Waste Disposal
    (505) 667-6382   Fax: 665-8347  Pager: 996-0573
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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