1. Cyliners larger than lecture bottles are used outside the hood, and are secured to the adjacent benchtop.
2. The cylinder usage is dependent upon the actual material. In all cases a trap should be installed in-line to prevent back-suck into the line and cylinder itself.
Hope this helps.
btw, I recall that a search function is avaliable on the DCHAS-L website to boolean topics. Is this still true?
-George D. McCallion
From: "Yung Morgan" <pmorgan**At_Symbol_Here**EHS.UMASS.EDU>
Sent: Wednesday, December 5, 2012 3:28:06 PM
Subject: [DCHAS-L] Gas cylinder storage in chemical fume hoods
Please excuse me if these questions about cylinders storage in laboratories hoods had been circulating with this group before.
1. Have you been able to use gas cylinders larger than lecture bottle size inside a chemical fume hood?.
2. If larger gas cylinders in chemical fume hoods are used, how exactly have they been used?
3. If you have not used larger gas cylinders in chemical fume hoods, is it only due to NFPA 45 or another reason?
Any thoughts you have will be appreciated. Thank you and Happy Holidays season!
Yung Morgan, MsPH
Industrial Hygiene Services
Environmental Health and Safety
117 Draper hall
UMASS,Amherst MA 01003
phone (413) 545-2682
Fax (413) 545-2600
email : pmorgan**At_Symbol_Here**ehs.umass.edu
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