regulation of uranyl acetate solutions

["John DeLaHunt" <jdelahunt@cc.colorado.edu>]

Do any other institutions maintain checks on the uranyl acetate solutions
used in elecrton microscopy?

Our friends at Colorado Department of Public Health and Environment (CDPHE,
pronounced see-dippy....) have informed me that any solution greater than
0.05% uranium by weight should be included in our 15-pound source material
exclusion, but that those solutions should be counted in their entirety
(i.e. as if they were an equivalent mass of solid uranium...).

This is a change for them, and I wonder if the madness is local or global,
and what electron microscopists are doing about it?

Thanks for your help....

John

*******************************************************
*John DeLaHunt, EH&S      *The Colorado College       *
*jdelahunt@cc.colorado.edu*1125 Glen Avenue           *
*hazmat-owner@csn.org     *Colorado Springs, CO  80905*
*VOX: (719)389-6678       *FAX: (719)635-3177         *
*******************************************************
    This advice is worth what you paid for it
            and is hereby disclaimed.