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Subject: Re: definition of 'tepid' in Z358
Date: Wed, 23 Mar 2011 16:36:56 -0600
Author: Alan Hall 		Next by Date:
Subject: Re: definition of 'tepid' in Z358
Date: Thu, 24 Mar 2011 07:58:08 EDT
Author: ACTSNYC**At_Symbol_Here**CS.COM


Date: Wed, 23 Mar 2011 20:18:08 EDT
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: ACTSNYC**At_Symbol_Here**CS.COM
Subject: Re: definition of 'tepid' in Z358

Bingo, Sonja,  Thanks so much!  Monona


In a message dated 3/23/2011 3:48:49 PM Eastern Daylight Time, sonja.ringen**At_Symbol_Here**NIST.GOV writes:



The ANSI/ISEA Z358.1-2004 standard, =E2=80=9CAmerican National Standard for Emergency Eyewash and Shower Equipment=E2=80=9D, states in Appendix B:



B6.  Delivered Flushing Fluid.  =E2=80=A6..Medical recommendations suggest a flushing fluid at tepid temperatures be delivered to affected chemically-injured tissue.  Temperatures in excess of 38 degrees C (100 degrees F) have proven to be harmful to the eyes and can enhance chemical interaction with the eyes and skin.  While cold flushing fluid temperatures provide immediate cooling after chemical contact, prolonged exposure to cold fluids affect the ability to maintain adequate body temperature and can result in the premature cessation of first aid treatment.  Recent information indicates that a temperature of 60 degrees F is suitable for the lower parameter for tepid flushing fluid without causing hypothermia to the equipment user.



I read that to mean tepid is a range of 60-100 degrees F.  At NIST/Boulder, we specify 75-95 degrees F.



Sonja Ringen

Safety Specialist

Boulder Safety, Health and Environment Division

National Institute of Standards and Technology

325 Broadway, MC 153.02

Boulder, CO  80305



Work:  303-497-7389

Mobile:  303-961-9251




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