Date: Tue, 17 Oct 2006 16:22:05 -0400
Reply-To: Barbara Mowery <bmowery**At_Symbol_Here**YCP.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Barbara Mowery <bmowery**At_Symbol_Here**YCP.EDU>
Subject: Re: Temperatures of Emergency Shower and Eyewash Water
Comments: To: "Greene, Ben"
In-Reply-To: <E07AD36B17A4D411896D00805FCC9B0D0F88701E**At_Symbol_Here**>


We have mixing valves on our most recently installed drench hoses and 
eyewashes; I have not checked the actual temp, but it feels pleasant.   
However, I have run into a problem with  the mixing valves-on my 
monthly checks I found some with low flow rates which I reported to 
maintenance. The person who fixed that said the mixing valves are prone 
to clogging, partly from lack of use, and need to be checked weekly, 
allowing them to run for several minutes.  Of course, that is still 
preferable to having an injured person refuse to rinse as long as 
necessary because of the ice cold water.

I'm not sure about safety showers and will check ASAP.

Barbara Mowery
Laboratory Coordinator
Department of Physical Sciences
York College of PA
Country Club Road
York PA 17405

Quoting "Greene, Ben" :

> Colleagues - With previous discussions regarding "tepid" water temperatures
> required by ANSI Z358.1-2004 in mind, I was curious what other facilities
> have measured the temperatures of their delivered water and what the results
> were.  With the low end of "tepid" being 60 F (Appendix B), it might seem
> cold for a dip but not for a, uh, soft drink.  We recently measured the
> temperatures of water from more than a dozen units (both eyewash and
> emergency showers, indoor and outdoor), and found a mean temperature of 72 F
> at an ambient outdoor temperature of 75 F; safely above the 60 F  "limit".
> Of course, we expect seasonal variation and plan to measure the temperatures
> periodically in the future to determine if mixing units are required.
> We are in southern New Mexico which has a nominally mild climate (though it
> does cool down in the winter) and I wondered what the delivered water
> temperatures at facilities in other parts of the country are.
> Ben
> Ben Greene, Ph.D.
> Jacobs
> Las Cruces, NM

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