From: Eric Clark <erclark**At_Symbol_Here**>
Subject: Re: [DCHAS-L] Dry ice disposal
Date: Mon, 27 Apr 2015 15:45:39 +0000
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 17A66C0B22391144A0BEE1CA471703EA84BA385D**At_Symbol_Here**ITSSDOWEXMB11.HOSTED.LAC.COM

Another dry ice disposal story worth sharing is that disposing of a large amount of it in the sink is a bad idea.  The sink and the drain pipe have different expansion (in this case contraction) coefficients, and the fact that the washer becomes brittle like hard plastic can break the drain seal resulting in a call to the plumber to fix a leaking sink. 

Just thought I’d pass that one along. 



Eric Clark, MS, CHMM, CCHO

Safety Officer, Public Health Scientist III

Los Angeles County Public Health Laboratory



From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]On Behalf Of Teresa Arnold
Sent: Monday, April 27, 2015 8:10 AM
Subject: Re: [DCHAS-L] Dry ice disposal


Thank you.  I love this!



On Mon, Apr 27, 2015 at 4:33 AM, Stuart, Ralph <Ralph.Stuart**At_Symbol_Here**> wrote:

There’s an interesting story about disposal of dry ice at home and lessons learned at

It could provide an interesting opportunity to do a hazard analysis in a lab safety training session.

- Ralph

Ralph Stuart, CIH, CCHO
Chemical Hygiene Officer
Keene State College



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