From: Michael Schaffer <MichaelS**At_Symbol_Here**PSYCHEMEDICS.COM>
Subject: Re: [DCHAS-L] Article
Date: Sun, 29 Mar 2020 00:25:58 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: BYAPR12MB2613CBDA897CBA39200F7DC2A0CA0**At_Symbol_Here**BYAPR12MB2613.namprd12.prod.outlook.com
In-Reply-To <008801d60537$28647260$792d5720$**At_Symbol_Here**verizon.net>


THANKS SO MUCH.  WILL TRY TO CONTACT THERMOSTAT MFG.

 

TO ALL:

 

BE SAFE..,BE WELL,,,,YOU AND YOUR FAMILIES AND STAFF AND LOVED ONES,

 

 

 

ichael I. Schaffer, Ph.D., F.A.B.F.T., NRCC-TC

VP Laboratory Operations

Psychemedics Corporation

5832 Uplander Way

Culver City, CA 90230

310-216-7776 (phone)

310-216-6662 (Fax)

(800) 522-7424 (toll free) Extension 140

 

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From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> On Behalf Of Richard Palluzi
Sent: Saturday, March 28, 2020 12:29 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Article

 

This Message Originated Outside the Company

Please feel free to give me a call. A lot depends on what type systems they are surviving. (So it you have three separate systems (a usually bad design) you would usually use 3 thermostats unless someone was smart enough to realize that they need to do it with just one which requires some design work.)

 

I don't know of any standard they tells you where to place them, just a lot of guidelines. And I'd ask if you have large temperature differentials in the lab. Most times you won't due to the high turnover. And if you don't who really cares where they placed them however strange it seems.

 

Richard Palluzi

PE, CSP

 

Pilot plant and laboratory consulting, safety, design,reviews, and training

www.linkedin.com/in/richardppalluzillc/

 

Richard P Palluzi LLC

72 Summit Drive

Basking Ridge, NJ 07920

rpalluzi**At_Symbol_Here**verizon.net

908-285-3782

 

From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> On Behalf Of Michael Schaffer
Sent: Saturday, March 28, 2020 2:52 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Article

 

I have a question.

We recently remodeled our lab. 

Had a ton of HVAC problems during and after construction.

Getting through them but very painful and expensive.

One of the issues was in the 4 lab areas, they installed up to three thermostats on the same wall within inches of each other!!!

We fought with the mechanical electrical engineers. 

I dont know where to look to establish proper  placement and force them to move them as the rooms are large and full of equipment.

Is there a standard practice?

Thanks

 

 

Michael I. Schaffer, Ph.D., F.A.B.F.T., NRCC-TC

VP Laboratory Operations

Psychemedics Corporation

{5832 Uplander Way}

{Culver City, CA 90230}

310-216-7776 (phone)

310-216-6662 (Fax)

(800) 522-7424 (toll free) Extension 140

 

*** CONFIDENTIALITY NOTICE ***

THIS ELECTRONIC MAIL TRANSMISSION AND THE DOCUMENTS ACCOMPANYING IT CONTAIN INFORMATION BEING SENT BY  PSYCHEMEDICS CORPORATION AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND/OR EXEMPT FROM DISCLOSURE.  The information is intended only for the use of the person(s) named above.  If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or the taking of any action in reliance on the contents of this information is strictly prohibited.  If you have received this transmission in error, please immediately notify us by telephone at (800) 522-7424 and delete/destroy all copies.  Your receipt of this message is not intended to waive confidentiality or any privilege.  The above name and title are not intended to constitute any form of signature.

 

On Mar 28, 2020, at 11:30 AM, Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**lists.princeton.edu> wrote:

?

This Message Originated Outside the Company

Richard,  Brilliant and very clearly written.  I would only argue with the very first line which is:

 

"Laboratory ventilation is very different from commercial and industrial systems.

 

While I agree that lab ventilation is very different from commercial, heating and air-conditioning ventilation, I do not agree that it is different from industrial ventilation.  Lab ventilation is industrial ventilation.  I have a problem with the heating and air-conditioning standards being used when there is a better code developed by the American Conference of Governmental Industrial Hygienists (ACGIH) which should be used instead.

 

Every problem you describe is exactly the same problem in industrial ventilation design.  I can't speak for large industrial systems for refineries and major manufacturing, but I know they are identical for: wood shops; foundries; welding and metal working shops; sculpture, ceramic, and fine art studios; and theatrical scene, prop, and costume shops.  Now we are seeing the same problems in the new fab labs which are full of 3D printers, CNC routers, laser cutters, water jet cutters, and other new technology.

 

And I love the picture which could be titled  "how not to design a canopy hood."

 

Monona

 

-----Original Message-----
From: Richard Palluzi <000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Sent: Sat, Mar 28, 2020 12:32 pm
Subject: [DCHAS-L] Article

Some of the members of this list might be interested in this article:

 

The Ten Most Common Laboratory Ventilation Mistakes

 

at

 

 

 

Richard Palluzi

72 Summit Drive

Basking Ridge, NJ 07920

908-285-3782

 

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