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From: Paul Weller <wellerp**At_Symbol_Here**ELON.EDU>
Subject: HF Cylinder
Date: Jul 12, 2005 19:11 UTC
Reply-To:
Paul Weller
In-Reply-To:
Don Abramowitz's memory is correct concerning a maximum shelf life for HF cylinders. The reference provided by Joseph Passanate, http://www.airproducts.com/Responsibility/EHS/ProductSafety/ ProductSafetyInformation/safety_bulletins_PotentialPressurization.htm, also leads to an MSDS for cylinders of HF which recommends pressure must be checked at least every two years. Paul Weller Science Laboratory Manager-Chemistry Elon University