Re: Status of ANSI N13.12 (1987)

[Chuck Peper <peper@lanl.gov>]

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)
>
>
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