From: Ralph Stuart <Ralph.Stuart**At_Symbol_Here**>
Subject: Re: [DCHAS-L] Waste storage question
Date: Thu, 5 Aug 2021 17:38:27 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: 7F3A6111-40EA-46E6-AAC5-384E5B2D87C5**At_Symbol_Here**

> I prefer to use the Fisher web site to look up safety and SDS information, as everything is clear and easy to understand.

Thanks for sharing that resource. I note that the Fisher SDS states that "Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste.‰?? Someone else shared a link to a 2016 EPA document that describes the regulatory process for the classification of waste solvents, assuming perfect information is available for the mixture. This guidance is at

Unfortunately, we don‰??t have enough specific information available for this waste mixture to use the EPA‰??s resource. So we will be erring on the side of caution and assuming it is flammable.

Thanks to everyone for sharing their thoughts on this question.

- Ralph

Ralph Stuart, CIH, CCHO
Environmental Safety Manager
Keene State College
603 358-2859


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