Re: Soil Standards

[LIPTONW@detroitedison.com]

--Boundary-1991807-0-0

I'm not aware of any standard, but when I needed to mix radionuclides with 
soil for my thesis work, I used a ball mill, to prepare the samples.  To 
verify homogeneous mixing, I prepared some samples using Tc-99m, and counted 
aliquots of them.  It was messy, but I did this on a Friday, and took the 
weekend off! 
Bill Lipton 



--Boundary-1991807-0-0
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Subject: Soil Standards
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Dear Radsafers,

Does anyone know if NIST has a procedure for preparing soil standards 
where liquid sources containing one known nuclide are mixed with soil, 
thereby, obtaining a homogeneous mixture. What is the reference for this 
procedure and/or a NIST contact?

Send replies to:  johnrz@umich.edu

Thanks!!

John R Zometsky



--Boundary-1991807-0-0--