From: "Meschewski, Brian D" <bmesche2**At_Symbol_Here**ILLINOIS.EDU>
Subject: Re: [DCHAS-L] Peroxide forming compound testing program
Date: Thu, 1 Feb 2018 13:59:23 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 671E8158DE91974CB435750BF546F74639441BE9**At_Symbol_Here**
In-Reply-To <54EE03AFF14DA042AC76DC84AB79A6D542383F47**At_Symbol_Here**>

We typically go with the pass/fail method as well. If peroxide forming solvents have not been tested within their recommended testing period (per the SDS, Prudent Practices, etc), we treat them as if they contain peroxides. We once found a can of isopropyl ether that had been sitting around for years, and no peroxides were detected (this was evaluated by our waste vendor’s “high haz” team). We’ve also found relatively “young” ether that did test positive. Never know what you’ll find hidden away, so I like to fall on the side of caution when handling these.


Brian Meschewski

Research Safety Professional

Division of Research Safety

University of Illinois at Urbana-Champaign




From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Pavlak, Edmund J
Sent: Wednesday, January 31, 2018 6:35 AM
Subject: [DCHAS-L] Peroxide forming compound testing program


Does anyone have a testing program in which peroxide forming chemicals are tested?  If so, what methodology are you using?  Do you have a threshold value for disposal, and is it for all peroxide formers or are there different thresholds specific to certain chemicals?


Thanks for your help.


Joe Pavlak


Chemical Management System

Safety and Health Services Division

Brookhaven National Laboratory

Building 120

Upton, NY 11973

631-344-2028 office

631-831-3692 cell


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