Date: Mon, 16 Oct 2006 08:29:39 -0600
Reply-To: "Greene, Ben" <bgreene**At_Symbol_Here**SMTP3.WSTF.NASA.GOV>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Greene, Ben" <bgreene**At_Symbol_Here**SMTP3.WSTF.NASA.GOV>
Subject: Temperatures of Emergency Shower and Eyewash Water

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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