From: Harry Elston <helston**At_Symbol_Here**MIDWESTCHEMSAFETY.COM>
Subject: [DCHAS-L] Posting for colleague - Gas Safety Question
Date: Sun, 24 Apr 2016 18:21:58 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 000901d19e80$1e754760$5b5fd620$**At_Symbol_Here**



I’m posting this for Yamy Gonzelez who is having problems getting  to the list.  Respond to her (gonzalyi**At_Symbol_Here**, not to me, please.





Good morning!


I've been asked to collect information on how many institutions have a policy or guideline in place requiring any or all of the compressed cylinders with NFPA health and/or flammability rating 3 or 4 to be changed at a certain time of the day and do you require/recommend 2 or 3 people for conducting the process? 

-    For example, do you require H2, methane, propane or CO cylinders to be changed before 7:30am? Or during normal working hrs? How about for other chemicals like ammonia? Or silane, ...?



Thank you in advance for your response,




Yamaira I. Gonzalez, PhD

Laboratory Safety Coordinator

Chemical and Biomolecular Engineering Dept

University of Delaware

Newark, DE 19716

(302) 388-9368 (c)


(302) 831-1048 (f)

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