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Previous by Date: Subject: Re: [DCHAS-L] Heating tape for DMSO column Date: Thursday, October 1, 2015 12:14:46 PM Author: Margaret Rakas <mrakas**At_Symbol_Here**SMITH.EDU> |
Next by Date: Subject: Re: [DCHAS-L] plumbing H2 from remote location Date: Thu, 1 Oct 2015 12:22:24 -0400 Author: Allen Niemi |
Janet,
Check local fire codes. Check maximum allowable quantities (threshold limits) for flammable gases according to building fire zones/permits. You may have some
leverage for flammable storage distance here if you check the local fire codes first.
Luis.
Luis Samaniego
Sr Laboratory Safety Specialist
Northwestern University
Office for Research Safety
303 East Chicago Avenue
Ward B-106, W223
Chicago, IL 60611
(312)503-8300
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**med.cornell.edu]
On Behalf Of Harry Elston
Sent: Thursday, October 01, 2015 10:44 AM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: Re: [DCHAS-L] plumbing H2 from remote location
Janet,
If done correctly, plumbed system will not add to the risk of the project. By “done correctly” I mean that: (1)the gas piping is double-walled stainless, (2)
properly designed and executed hydrogen monitoring in the storage and use areas and (3) cylinders are stored flammable gas storage cabinets.
The cylinders next to the instrument should be in flammable gas storage cabinets now and you should be drawing the hydrogen from the cabinet, not a bare tank.
Likewise, you should be monitoring near the ceiling and in the corners now as well.
Harry
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**med.cornell.edu]
On Behalf Of Rogers, Janet
Sent: Thursday, October 01, 2015 10:25 AM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: [DCHAS-L] plumbing H2 from remote location
To All:
We need to use H2 gas for FID-GC. Our campus EH&S officer wants us to plumb H2 gas from a cylinder placed at some remote location (as yet unknown to me, but I've heard both: a) from
the hallway and b) from outside the building) to our instrument lab. We do not see why we cannot use the H2 cylinder in the instrument lab, next to the instrument, as we have been doing. Increasing the distance between the H2 cylinder and the instrument
seems like it would increase the safety risk.
I'd appreciate hearing your thoughts/comments/experience in handling H2 safely in your labs.
Janet Rogers, Ph.D.
Professor
Chemistry Department
Edinboro University of Pennsylvania
230 Scotland Road
Edinboro, PA 16444
phone: 814.732.1539
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