Re: Criteria used to protect nuclear materials from fire

["Otto G. Raabe" <ograabe@UCDAVIS.EDU>]

You Wrote:



>Jim Hutton of DOE wrote that the criteria used to test overpacks and UF6 cylinder shipments 1475oF for 30 minutes is not reflective of a fuel fire in a transportation accident.<



What is the assumed fuel in a transportation incident?  is it Diesel, and what is the unconfined burning temperature of diesel?  Do transportation fuel fires typically burn for 30 minutes in one spot?    His statement as quoted really doesn't indicate if he thinks the test is to stringent or to lax.  Not being a firefighter I have wondered about the temperature and time element before.  They seem high to me, but I've never responded to burning saddle tanks.  There must be studies on this, I just don't know where they are.



Zack Clayton

Ohio EPA - DERR

email:  zack.clayton@epa.state.oh.us

voice:  614-644-3066

fax:       614-460-8249





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