International standards/regulations for use of standard radiation symbol

["Pickett, Bruce D" <Bruce.Pickett@PSS.Boeing.com>]

> In the United States, the "standard radiation symbol", or the
> radiation trefoil as it is sometimes called, is defined in Title 10 of
> the Code of Federal Regulations, Part 20, Section 20.1901(a). Can
> someone tell me if there is a similar definition in any IAEA
> standards? 
> 
> Ron Kathren's and Paul Ziemer's book, "Health Physics: A Backward
> Glance" details the early development of this symbol in the late
> 1940's in the US, but the adoption of it on a world-wide basis is not
> detailed there.
> 
> Bruce Pickett
> The Boeing Company
> Seattle, WA  98124
> (425)393-3098, FAX (425)393-3060
> bruce.d.pickett@boeing.com