RE: International use of radiation symbol

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

Yes, I agree that the IATA Dangerous Goods Regulations specify the use
of  the trefoil for labelling of packages containing radioactive
materials. However, that does not preclude the symbol from being used
elsewhere. Whereas, the trefoil is usually used only for denoting
ionizing radiation, I have seen it used elsewhere. On a number of
occaisions, I have observed US Navy A-6 Intruder aircraft with the
trefoil stencilled upon the nose fairing (although upside down). When I
have questioned the pilots and bombadier/navigators about this, they
have responded that the trefoil is there because of the radar antenna
inside the nose. 

If someone is familiar with a regulation, standard, or other guidance
that prohibits the use of the trefoil for nonionizing radiation, in the
US or elsewhere, I would appreciate a citation for where it may be
found.

Bruce Pickett
The Boeing Company
Seattle, WA  USA
(425)393-3098, FAX (425)393-3060
bruce.d.pickett@boeing.com



> ----------
> From:
> LIPTONW@detroitedison.com[SMTP:LIPTONW@detroitedison.com]
> Sent: 	Thursday, September 04, 1997 11:57 AM
> To: 	Multiple recipients of list
> Subject: 	Re: International use of radiation symbol
> 
> 
> --Boundary-6216017-0-0
> 
> The trefoil radiation symbol is generally taken as the universal
> symbol for 
> ionizing radiation.  It is specified for international shipments by
> the 
> International Air Transport Association.  Hence, it should NOT be used
> for 
> nonionizing radiation, and, in some cases may result in a violation. 
>  
> The opinions expressed are strictly mine. 
> Here's to a risk free world, and other fantasies. 
>  
> Bill Lipton 
> liptonw@detroitedison.com 
> 
> 
> 
> --Boundary-6216017-0-0
> Content-Type: message/rfc822
> 
> Date: 04 Sep 97 12:55:43
> From:"radsafe@romulus.ehs.uiuc.edu" <radsafe@romulus.ehs.uiuc.edu>
> To: Multiple,recipients,of,list,radsafe@romulus.ehs.uiuc.edu
> Subject: =?DIN_66003?Q?International_use_of_radiation_symbol?=
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> 
> We have a non-US partner in a project who wants to use the radiation
> trefoil symbol, or "standard radiation symbol", to denote nonionizing
> radiation hazards. Are there any international guidelines, IAEA or
> otherwise, for the use of the trefoil symbol? Is it common practice in
> other countries to use the trefoil for nonionizing radiation?
> 
> Bruce Pickett
> The Boeing Company
> Seattle, Washington, USA
> (425)393-3098, FAX (425)393-3060
> bruce.d.pickett?boeing.com
>  
> 
> 
> --Boundary-6216017-0-0--
>