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Subject:
[DCHAS-L] CHO exam
Date:
Feb 5, 2014 22:18 UTC
Author:
Humphrey, Karalyn J. <Karalyn_Humphrey**At_Symbol_Here**BAYLOR.EDU>
From:
Beltis.K**At_Symbol_Here**TIAXLLC.COM
Subject:
Re: [DCHAS-L] Gas Cylinder Hydrostatic Testing
Date:
Feb 5, 2014 22:05 UTC
Reply-To:
DCHAS-L
In-Reply-To:
Sent by:
DCHAS-L Discussion
List <dchas-l**At_Symbol_Here**MED.CORNELL.EDU>
Just to summarize the responses,
regulations allow a compressed gas cylinder that was filled before expiration
of its hydrostatic test date to remain in service until it is emptied and
such a cylinder with an expired test date can be transported (e.g., to
be tested and refilled). Of course prudent practice dictates that
cylinders that have been damaged or subjected to extreme stress of any
kind be inspected/tested sooner.
Thank you to everyone who responded.
Ben Owens
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]
On Behalf Of Dan Kuespert
Sent: Wednesday, February 05, 2014 3:45 AM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: Re: [DCHAS-L] Gas Cylinder Hydrostatic Testing
While, as the fellow from Airgas (and others)
pointed out, it is legal to transport and generally safe to continue to
use the cylinder after its expiry date (probably—assuming the user hasn’t
used it for target practice!), I still like to point to the need for recertification
with our labs because it helps me encourage them to get rid of cylinders
they’ve had since 1982 (really!) and consequently it reduces demurrage
charges for cylinders kept for 32 years.
Regards,
Dan
--
Daniel R. Kuespert, Ph.D.
Homewood Laboratory Safety Advocate
Krieger School of Arts & Sciences/G..W.C.
Whiting School of Engineering
The Johns Hopkins University
Shaffer Hall 103G
3400 N. Charles St.
Baltimore, MD 21218
(410) 516-5525
dkuespert**At_Symbol_Here**jhu.edu
On 2/4/14, 8:54 PM, "Benjamin G Owens"
<bowens**At_Symbol_Here**UNR.EDU>
wrote:
All,
I understand that compressed gas cylinders
must have a current hydrostatic test to be filled. I have read a
vendor site that indicates that a cylinder may be transported after the
hydrostatic test expiration date if it was filled prior to the expiration
date. If cylinders that have exceeded the hydrostatic test date are
considered safe to transport are they considered safe to continue using?
In other words, if a compressed gas cylinder is not empty but has
exceeded the hydrostatic test expiration date is it required by regulation
or prudent practice to be returned for testing or can it continue to be
used?
Thanks,
Ben
----------------------------------------------------
Ben Owens
Assistant Director, Laboratory Safety
University of Nevada, Reno
EH&S Dept., MS 328
Reno, NV 89557
775-327-5196 (office)
775-843-2113 (cell)
