From: Benjamin Partridge <bpart**At_Symbol_Here**SAS.UPENN.EDU>
Subject: Re: [DCHAS-L] Emergency Shower and Eyewash Temperatures
Date: Sun, 8 Jul 2018 10:30:49 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: CABfi9DgXE5P-d3zG106RM97UerQLAokSQWF8jSRtd-toV7=uNQ**At_Symbol_Here**

Tyrell, Penny, and all,

We had a similar problem after a lab renovation in our department - the eyewashes started cold and seemed to get progressively warmer as flow continued.

There's a host of information on (which references ANSI Standard Z358.1-2014 "Emergency Eyewash and Shower Equipment"). Water should be "tepid" (defined by the standard as between 60 and 100 =B0F). Essentially, not so cold as to be uncomfortable but no warmer than body temperature.

Credit to our Sr. Lab Safety Specialist, Kimi Brown, who found this information when we were having issues.



Benjamin E. Partridge
PhD Candidate
Department of Chemistry
University of Pennsylvania

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