Date: Thu, 1 Dec 2011 10:29:57 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Sender: DCHAS-L Discussion List <dchas-l**At_Symbol_Here**>
From: Mary Ellen A Scott <mas35**At_Symbol_Here**CASE.EDU>
Subject: Fume Hood
X-To: DCHAS-L <dchas-l**At_Symbol_Here**>

Hello Everyone,

When the utility panel on a chemical fume hood is missing is it safe to allow work to be preformed in the hood?

I would say work (synthesis, toxic gas use and powder decanting) should not be preformed until the panel be replaced for the following reasons:

1. Eddyies in the hood are likely to be form which may cause loss of containment.
2. Chemicals vapors are going into areas where they are not suppose go and may cause deterioration of the plumbing and joints
3. HighPerformance and Low flow hoods would be especially vulnerable to the loss of work space integrity.

Would anyone have a policy on hood repairs like the above or comments?
As always, thank you for your thoughts in advance.

Mary Ellen

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