Re[2]: Use of unsealed thorium

["William Kolb" <William_Kolb_at_SETA@mail.hq.faa.gov>]

Could you be specific which manufacturers and which Aluminium Oxide wheels?  Are
you sure the use of Thorium is intentional?

bill
bkolb@arinc.com
_______________________________________________________________________________
Subject: Re: Use of unsealed thorium
From:    radsafe@romulus.ehs.uiuc.edu at smtpgate
Date:    5/13/96  1:44 PM

Some manufacturers use thorium in the constuction of aluminum oxide grinding
wheels.  Tungsten welding TIG rods are sometimes thoriated also. Doug Turner