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From: Jeffrey Lewin <jclewin**At_Symbol_Here**MTU.EDU>
Subject: Re: [DCHAS-L] Examples of risk assessments for lab procedures?
Date: Mon, 7 Oct 2013 11:58:14 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CAEwQnqhqbuZbZjHHV8cvr6smT6_+dZmO6ERB4oe+TNOLfxrEvg**At_Symbol_Here**mail.gmail.com
In-Reply-To <5564F9EDC11C09468EE5DAF02B5CB30F4A8CA461**At_Symbol_Here**BY2PRD0410MB376.namprd04.prod.outlook.com>

Demystify: 

My "go to" for these kind of discussions is washing glassware, specifically making up a 5 or 10% acid bath for dipping glassware in. There are opportunities to discuss engineering controls (fume hood, mechanical devices for dipping glassware into the bath), appropriate PPE as well as general chemical safety. It can also be expanded as needed to cover how to handle broken glass and disposal of the bath, storage of acids and if you really want to expand, the process of cleaning the glassware before it gets to the acid bath - disposal of contents, making up detergent baths (a good one for catching students on PPE since they don't always understand the differences between commercial and consumer grade detergents), etc.

Jeff Lewin
Biological Sciences
Michigan Technological University




On Mon, Oct 7, 2013 at 9:12 AM, Ralph B. Stuart <rstuart**At_Symbol_Here**cornell.edu> wrote:
I have the opportunity next month to do a lab safety training for a group of undergrad students who are involved in a variety of kinds of laboratory research. Of the 3 hours I have, I hope to include 20 to 30 minutes to do a sample lab safety risk assessment for a simple chemical-oriented procedure they may have some experience with, either in the research or classroom environment. I wonder if anyone has specific suggestions for procedures that work well in this context as a risk assessment exercise. I'd like to have it complicated enough to have some unexpected results (e.g. gloves aren't need in step 3-5, but are in 1 and 2) while being able to cover it in 30 minutes or less.

Thanks for any suggestions about this.

- Ralph


Ralph Stuart CIH
Chemical Hygiene Officer
Department of Environmental Health and Safety
Cornell University

rstuart**At_Symbol_Here**cornell.edu

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