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Previous by Date: Subject: Re: [DCHAS-L] Safety Showers, Drains and ADA Compliance Date: Thursday, February 1, 2018 at 6:07:03 PM Author: Bruce Van Scoy <bvanscoy**At_Symbol_Here**TWC.COM> |
Next by Date: Subject: Re: [DCHAS-L] Safety Showers, Drains and ADA Compliance Date: Thu, 1 Feb 2018 20:25:05 -0500 Author: Denise Beautreau |
I've reached out to my fume hood testing company to respond. But my
experience is they have performed both static and dynamic elements during
ASHRAE 110 tests that I have commissioned. Now let me pose a proposition to
the list.
Please look at Section 15991 for On-Site Testing of Constant Volume Fume
Hoods and Section 15992 Testing Variable Air Volume Fume Hoods. I believe
these are modified ASHRAE 110 tests, but in a good way. If you are relying
upon fume hoods, I recommend that you compare them compared to the standard
ASHRAE 110 tests - you will see differences that are significant.
BruceV
-----Original Message-----
From: ACS Division of Chemical Health and Safety
[mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Stuart, Ralph
Sent: Thursday, February 1, 2018 8:37 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Fume Hood Testing ASHRAE 110 - NIH modified
>Can you all let me know whether you request NIH modifications for fume hood
testing and if so, do you actually receive both static and dynamic elements
of the tests? Do you know of any companies that actually do the dynamic
portion of the test?
>
Good question. My experience is that NIH's design standards don't translate
well outside that institution because they rely on a level of engineering
and mechanical expertise that is often not available outside NIH
headquarters. Finding a contractor who is willing to accept the perceived
additional liability associated with changing their standard practices can
be a challenge.
For example, I had experience with the question you raise at a previous
campus while commissioning a relatively small lab building (14 hoods). The
contractor did an informal version of the NIH modification on one hood to
convince me and himself that the hood design for this building passed the
dynamic aspect of the test. These hoods were built like a tank and it would
have taken a hurricane in the lab to disrupt containment, so we decided to
stick with the standard ASHRAE protocol for that building.
Others on the list have commissioned many more hoods on that campus than I
have, and I don't know if they are continuing to follow that practice or
not.
- Ralph
Ralph Stuart, CIH, CCHO
Environmental Safety Manager
Keene State College
603 358-2859
ralph.stuart**At_Symbol_Here**keene.edu
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