Date: Thu, 18 Dec 2003 16:30:27 -0800
Reply-To: Gordon Miller <miller22**At_Symbol_Here**LLNL.GOV>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Gordon Miller <miller22**At_Symbol_Here**LLNL.GOV>
Subject: Minimum Concentration at Which HF Acid is Hazardous

We've traditionally said 5% is a de minimis hazardous concentration.
Does anybody know what this might be - a concentration of HF below
which it becomes relatively "non-hazardous"?

Gordon Miller
Lawrence Livermore National Laboratory
P.O. Box 808  (L-379)
Livermore, California 94550
(925) 423-8036
Fax (925) 422-5176

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