[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: DoT Packaging
As with other hazardous materials, the materials and/or modes of transport
dictate the required packagings. In (very) general, greater than Type A
quantities (49CFR173.435) of radioactive materials require Type B packagings
which do meet certain accident scenarios. All NRC regulated packagings, as
of April 1, 1999 will also meet certain accident condition scenarios.
----- Original Message -----
From: Tad Blanchard <Tad.M.Blanchard.1@gsfc.nasa.gov>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Sent: Friday, January 21, 2000 12:23 PM
Subject: DoT Packaging
> As I understand DOT regulations, packagings are designed for "normal
conditions during transport" and NOT accident situations.
>
>
>
>
> At 01:03 PM 1/21/00 -0600, you wrote:
>
> >This is a multi-part message in MIME format.
>
> >--------------0EE9AF67C4B97C50A6338F75
>
> >Content-Type: text/plain; charset=us-ascii
>
> >Content-Transfer-Encoding: 7bit
>
> >
>
> >Jim Hardeman wrote:
>
> >
>
> >> Another incident, to augment the one
>
> >> which Bruce Bugg described earlier.
>
> >> Several years ago (on the day after
>
> >> Thanksgiving, as I recall) there was a fire
>
> >> at a building just outside Atlanta which
>
> >> housed, among other firms, a
>
> >> geotechnical engineering firm which used
>
> >> several moisture-density guages in their
>
> >> work.
>
> >>
>
> >> One of my staff reentered the building with
>
> >> FD personnel, located the devices and
>
> >> determined that the lead shielding had
>
> >> melted on all of them.
>
> >
>
> >I thought density gauge shielding was lead in welded steel shells. If
this
>
> >were to be so, when the shields got hot, wouldn't the lead expand and
burst
>
> >the shielding? Is that what happened in this case? If not, what was the
>
> >construction of the gauges?
>
> >
>
> >This brings up another question. We have all kinds of requirements for
>
> >packaging for transport of radioactive materials viv-a-vis fires. Do we
>
> >have the same requirements for density gauges where the gauge is the
>
> >packaging for transport. I remember seeing radiography sources in their
>
> >shields sitting in the back of a pickup truck driving down the road. Are
>
> >those devices subject to DOT and NRC packaging requirements? Who knows
and
>
> >will tell? Al Tschaeche antatnsu@pacbell.net
>
> >
>
> >--------------0EE9AF67C4B97C50A6338F75
>
> >Content-Type: text/x-vcard; charset=us-ascii;
>
> > name="antatnsu.vcf"
>
> >Content-Transfer-Encoding: 7bit
>
> >Content-Description: Card for Al Tschaeche
>
> >Content-Disposition: attachment;
>
> > filename="antatnsu.vcf"
>
> >
>
> >begin:vcard
>
> >n:Tschaeche;Al
>
> >x-mozilla-html:FALSE
>
> >org:Nuclear Standards Unlimited
>
> >version:2.1
>
> >email;internet:antatnsu@postoffice.pacbell.net
>
> >title:CEO
>
> >x-mozilla-cpt:;0
>
> >fn:Al Tschaeche
>
> >end:vcard
>
> >
>
> >--------------0EE9AF67C4B97C50A6338F75--
>
> >
>
> >************************************************************************
>
> >The RADSAFE Frequently Asked Questions list, archives and subscription
>
> >information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
>
> >
>
> >
>
> **************************
> <bold><color><param>8080,0000,0000</param>/^\</color></bold>
> <bold><color><param>8080,0000,0000</param>/^\</color></bold>
> ***********************************
>
> Tad Blanchard <bold><color><param>8080,0000,0000</param>/___\
/___\ </color></bold>NASA-Goddard Space Flight Center
>
> Sr Health Physics Tech <bold><color><param>8080,0000,0000</param>
<bigger>O</bigger> </color></bold>Code 205.9, Greenbelt, MD 20771
>
> <bold><italic><color><param>0000,0000,ffff</param>Parallax, Inc
</color></italic><color><param>8080,0000,0000</param>/ \
</color><color><param>0000,0000,ffff</param>Phone: 301-286-9157
>
> </color><italic><color><param>0000,0000,8080</param>A Member of the OHI
Team
</color></italic><color><param>8080,0000,0000</param>/___\</color></bold>
<bold><color><param>0000,0000,8080</param>Fax: 301-286-1618
>
> </color></bold> mailto:tmblanch@pop200.gsfc.nasa.gov
>
> http://gsfc-aphrodite.gsfc.nasa.gov/205/205-2/Health/RADPROT.HTM
>
> ************************************************************************
> ************************************************************************
> The RADSAFE Frequently Asked Questions list, archives and subscription
> information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html