From: David Roberts <droberts**At_Symbol_Here**DEPAUW.EDU>
Subject: Re: [DCHAS-L] Thirteen people hurt in chemical explosion at Nevada museum
Date: Fri, 5 Sep 2014 11:52:55 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 5105D674-F2E8-4BC4-892B-950FEBFE6B64**At_Symbol_Here**

My 0.02 on these demos - including what I pass on to members of my department who participate in outreach events. I?ve seen a lot of these types of accidents/incidents over the years. None personally, just in terms of reading about them. I feel that many of these events have happened due to container failure. That is, using the same container over and over, eventually developing some sort crack in the container that leads to some sort of catastrophic container failure.

Many people have done the same demo for years, and suddenly have issues, leading to a news report and hospital visits and whatever. I do feel it?s often something simple like container failure due to overuse, though I don?t have any real evidence for this. Personally, I have seen many containers fail over the years, and often times it is from something like this happening.

Be safe all


On Sep 5, 2014, at 10:36 AM, CHANDRA, Tilak wrote:

> There are many conflicting reports about the incident and we need to wait for the final scientific report, if done correctly. Rainbow, NY High school and other recent incidents are almost same (methanol and salts) and keep happening. All these incidents are mainly caused by human errors or not having the hands-on training and instrument failure. We need to know the scale of the DEMO/reaction (qty. used of Boric aacid, MeOH, H+), SOP, training, containment etc.
> Tilak
> -----Original Message-----
> From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Ralph Stuart
> Sent: Friday, September 05, 2014 8:29 AM
> To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
> Subject: Re: [DCHAS-L] Thirteen people hurt in chemical explosion at Nevada museum
>> When I used to climb and mountaineer more I used to read a yearly accident report.
> I was talking to a Cornell faculty member who was also a skydiver and she reported that there is a similar system in that sector. There has been a precipitous decline in accidents over the last few decades as a result.
> I guess when your business involves clear risks to your customers, you develop a proactive safety system. It will be interesting to see when the lab management community moves beyond surprise that there is risk to acknowledging and managing that list.
> - Ralph
> Ralph Stuart, CIH
> rstuartcih**At_Symbol_Here**

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