DCHAS-L Archives, Oct 10 2013 - Re: [DCHAS-L] Fume Hood & Lab ventilation presentation for Engineering students

In addition to what Russ suggested – consider the following:

- Position/use of equipment in the hood (blocking baffles, raising on legs, etc)

- Body position and movement

- Air flow in the room (supply, return, doors, windows)

Engineers are key players in designing ventilation solutions, so knowing the right place to locate a CFH in a space is critical to the overall success of building ventilation.

From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Russell Vernon
Sent: Thursday, October 10, 2013 3:23 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: Re: [DCHAS-L] Fume Hood & Lab ventilation presentation for Engineering students - what would you include?

The different types of system, Constant, Auxiliary, Variable Air,

The different types of hoods, bypass, non-bypass, perchloric Acid, etc.

Howthe depth of hood affects the containment characteristics

Snorkels

Why 100 fpm is generally able to contain

What the various ‘low flow’ hoods mean and their nuances

The way hoods are tasted (ASHRAE 110-1995)

Hood Alarms

Roof exhaust velocity

Re-Entrainment

Low profile High velocity exhaust fans

Air modeling studies

How long did you say you had to teach?

-Russ

Russell Vernon, Ph.D.
Director
Environmental Health & Safety
University of California, Riverside
900 University Ave
Riverside, CA 92521
www.ehs.ucr.edu
russell.vernon**At_Symbol_Here**ucr.edu
Direct (951) 827-5119
Admin (951) 827-5528
Fax (951) 827-5122

Taking a trip overseas?

Access Location Intelligence: https://ermsp.ucop.edu/uctrip and enter your UC Net ID

From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Kim Gates
Sent: Thursday, October 10, 2013 12:02 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: [DCHAS-L] Fume Hood & Lab ventilation presentation for Engineering students - what would you include?

I have the opportunity to give a 1 hr presentation to the Engineering student section of ASHRAE that meets on our campus. I am going to talk about fume hoods & lab ventilation. I will give a short presentation and then take them to a lab so they can test face velocity with my various Alnors.

I'm planning on including ASHRAE Industrial Ventilation, ANSI/AIHA Z9.5, SEFA-1, NFPA 45, Laboratory Fume Hoods by G. Thomas Saunders, and Laboratory Ventilation Work Book by D. Jeff Burton as resources..

As a chemical safety professional, what do you wish the graduating Engineering students knew about fume hoods and lab ventilation?

Thanks, as usual, for your input!

Kim Gates
Laboratory Safety Specialist
Environmental Health & Safety
Stony Brook University
Stony Brook, NY 11794-6200
Kim.Gates**At_Symbol_Here**stonybrook.edu
631-632-3032
FAX: 631-632-9683
EH&S Web site: http://www.stonybrook.edu/ehs/lab/

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