Date: Thu, 1 Dec 2011 07:21:23 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
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From: kauletta**At_Symbol_Here**NOTES.CC.SUNYSB.EDU
Subject: Re: Glove chart that lists sodium azide?
In-Reply-To: <002101ccb022$4719c6b0$d54d5410$**At_Symbol_Here**net>
Sammye - I don't think I saw you mention how much sodium azide was being handled and for how long. It will certainly make a difference in glove selection. I'd have a hard time convincing anyone that the risk of sodium azide in the lab (an occasional measuring of very small quantity) would require the silver shield & over glove versus doubling a pair of nitrile & removing them immediately. If they're working in manufacturing and handling large quantities for 6-8 hour shifts - no doubt about the extra protection. This is the same problem with trying to use industrial standards in the lab. PSM is great but won't apply to the labs, but I can certainly use some of the concepts.

Kim Auletta
Lab Safety Specialist
EH&S    Z=6200
Stony Brook University
FAX: 631-632-9683
EH&S Web site:

Remember to wash your hands!

From:        Harry Elston <helston**At_Symbol_Here**FGI.NET>
To:        DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Date:        12/01/2011 07:16 AM
Subject:        Re: [DCHAS-L] Glove chart that lists sodium azide?
Sent by:        DCHAS-L Discussion List <dchas-l**At_Symbol_Here**MED.CORNELL.EDU>

Not a flaw at all, Monona.  It is simply a statement of economic fact:  All gloves cannot be tested against all chemicals or all possible solvent/solute permutations unless one has an infinite amount of time, talent and treasure to do such testing.
If a user is all that curious, they can, of course, submit a glove sample and challenge agent to an ASTM testing facility and pay for the test themselves.
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of ACTSNYC**At_Symbol_Here**CS.COM
Thursday, December 01, 2011 5:15 AM
Re: [DCHAS-L] Glove chart that lists sodium azide?

All of this points up a flaw in the ASTM standard test for gloves.  It only provides for testing of chemicals that are liquids at room temperature and pressure, not for solids or solids dissolved in a liquid.  The exception are common chemicals that are actually gases dissolved in water like hydrochloric acid or ammonia solutions.  I've never seen a substance on any glove chart that was a solid dissolved in water.  So I think you are on your own as far as I know.  


In a message dated 11/30/2011 8:04:33 PM Eastern Standard Time,
llopez**At_Symbol_Here**EXCHANGE.FULLERTON.EDU writes:

From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Samuella B. Sigmann
Tuesday, November 29, 2011 8:14 PM
[DCHAS-L] Glove chart that lists sodium azide?

Does anyone have a chart that lists the permeation times for sodium azide?  


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