DCHAS-L Discussion List Archive
Date: Mon, 8 Nov 2010 10:29:18 -0500
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Kim Auletta <kauletta**At_Symbol_Here**NOTES.CC.SUNYSB.EDU>
Subject: Re: Glove box inspection checklist?
In-Reply-To: <FF70A3D197478C4A8E079799AD76FBEC04970A5205**At_Symbol_Here**gimli.morehead-st.edu>
I believe in low tech daily checks, too. I've seen techno-gremlins ruin
lots of things. But my point to the lab, especially since they were trying
to get compensated for ruined stock due to improper gas = how can they
prove that there wasn't a leak in the box? The gas reps aren't just going
to take their word for it that they were sure there was no leak (which
could also account for the ruined stock). Whether its the gauge or some
other check, they need to keep the log. From my experience, if you didn't
write it down, you didn't do it.
Kim Auletta
Lab Safety Specialist
EH&S Z=6200
Stony Brook University
kauletta**At_Symbol_Here**notes.cc.sunysb.edu
631-632-3032
FAX: 631-632-9683
EH&S Web site: http://www.stonybrook.edu/ehs/lab/
Remember to wash your hands!
From:
Rita Kay Calhoun
To:
DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Date:
11/08/2010 10:13 AM
Subject:
Re: [DCHAS-L] Glove box inspection checklist?
Sent by:
DCHAS-L Discussion List
Not to be contrary, but the "lab folks" test is much more dependable than
a gauge which can be broken and misreading pressures. When they built a
new wing to our building, the first lab they finished didn’t have enough
supply air. According to which hood sashes were open, there would be flow
out of the hood into the lab. The air flow display still read 100 lfm
which was correct in terms of magnitude. It just didn’t indicate that the
flow was in the wrong direction! I also once had the risk management
person in charge of keeping the hoods functioning correctly tell me that
everything was ok in a lab that had positive rather than negative pressure
based on what the computer readouts said. I’m not saying not to check
gauges and checklists. I’m saying don’t denigrate low-tech checks. They
can be more reliable.
Kay
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu] On Behalf Of
Kim Auletta
Sent: Monday, November 08, 2010 7:30 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: Re: [DCHAS-L] Glove box inspection checklist?
The box does have a gauge on it. I asked the lab folks if they look at it.
They said their test was that if the gloves were poking out, then they
knew it was ok. !! I did remind them that once they graduate & go to a
"real" job, recording things like pressure gauges in their lab book or
checklist were considered basic requirements for any work. They said
they'd set up a log sheet to do that. Can't make this stuff up!
Kim Auletta
Lab Safety Specialist
EH&S Z=6200
Stony Brook University
kauletta**At_Symbol_Here**notes.cc.sunysb.edu
631-632-3032
FAX: 631-632-9683
EH&S Web site: http://www.stonybrook.edu/ehs/lab/
Remember to wash your hands!
From:
Christopher Suznovich
To:
DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Date:
11/08/2010 07:18 AM
Subject:
Re: [DCHAS-L] Glove box inspection checklist?
Sent by:
DCHAS-L Discussion List
If you are just looking to to ensure there are no leaks of gas from the
box or into the box, you could do a pressure test to determine if the
pressure remains with an acceptable limit once filled with argon. The
opposite can also be done by performing a vacuum test, drawing a complete
vacuum inside the box and determine if the vacuum holds then you would
know that there are no leaks.
You could also leak a container of liquid smoke inside the box, purge the
box with argon or any other gas and once under pressure watch to see if
any of the smoke escapes from the box.
Chris
From: Kim Auletta
Reply-To: DCHAS-L Discussion List
Date: Thu, 04 Nov 2010 14:15:00 -0400
To:
Subject: [DCHAS-L] Glove box inspection checklist?
I have a lab that is using a glove box to maintain an inert atmosphere
with argon while working with lithium ribbon. While the operation looks ok
on the surface, they can't document or prove that they haven't had any
failures (research labs are not production & no one ever thinks of these
things!). Does anyone have a glove box inspection checklist or other info
they can share?
Thanks in advance for your help!
Kim Auletta
Lab Safety Specialist
EH&S Z=6200
Stony Brook University
kauletta**At_Symbol_Here**notes.cc.sunysb.edu
631-632-3032
FAX: 631-632-9683
EH&S Web site: http://www.stonybrook.edu/ehs/lab/ <
http://www.stonybrook.edu/ehs/lab/>
Remember to wash your hands!
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