From: Jay Toigo <ojt3**At_Symbol_Here**COMCAST.NET>
Subject: Re: [DCHAS-L] working with nanomaterial
Date: October 4, 2012 6:22:23 PM EDT
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <DC9B6B340B77DE43BFFBBFD7F28C2FD94764E308**At_Symbol_Here**>

How do you address nanomaterial that can pass through many filters as well as many materials? Of course it may take some time for this phenomenon to occur; considering this before worker contamination happens would be prudent. These materials represent a hazard that we have not really faced  before. We may only know a small portion of what we need to know to work safely with these materials; it is not prudent to use our standby tactics and procedures for health and safety.  TEST and VERIFY all containment systems thoroughly before proceeding with any work..

Jay Toigo. CHMM, M.P.H
 Chemist. U.S. Customs and Border Protection
Laboratories and Scientific Services, New York

Sent from my iPhone

On Oct 2, 2012, at 10:38, "Robin M. Izzo" <rmizzo**At_Symbol_Here**PRINCETON.EDU> wrote:


A glove box, a nano hood (a lower flow hood fitted with HEPA or ULPA filters, preferably with an ionizer) or a biosafety cabinet are better alternatives.  Our researchers mainly use glove boxes and one uses a nano hood when working with solid nanomaterials.






Robin M. Izzo, M.S.

Associate Director, EHS

Princeton University

609-258-6259 (office)


Get your facts first, then you can distort them as you please.

~ Mark Twain 


From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Yung Morgan
Sent: Tuesday, October 02, 2012 9:00 AM
Subject: [DCHAS-L] working with nanomaterial


Dear  members,


   Does anyone have a source on  a containment system  for  safely weighing  dry nanomaterial?   A chemical hood is usually too turbulent for the accuracy of a Mettler balance.  Any thought you have including precaution(s) to take for this type of  work would be appreciated.  


Thank you and keep up the great work you do.


Yung Morgan, MsPH
Laboratory Safety
Industrial Hygiene Services
Environmental Health and Safety
117 Draper hall
UMASS,Amherst MA 01003
phone (413)  545-2682
Fax  (413) 545-2600
email : pmorgan**At_Symbol_Here**


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