Status of ANSI N13.12 (1987)

[barberj@m4lp.com (Jerry Barber)]

     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)