Date: Fri, 30 Apr 2010 14:59:41 -0400
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "George D. McCallion" <medchem**At_Symbol_Here**COMCAST.NET>
Subject: Re: Gas Regulator Question
In-Reply-To: <48A020E1942E024DB0F2A6B68A13124407FC94214C**At_Symbol_Here**>

hear hear!

I echo this as well.

My practice is when working on process valves to turn away when  
opening or closing.

I instruct my interns & new employees the same practice.

Although I am a Process Chemist this thread does have cross- 
discipline impact!


George D. McCallion
Chemist III
Chemical Process Research & Development
Johnson Matthey Pharmaceutical Materials
2003 Nolte Drive
West Deptford, NJ 08066-1742
Voice: 856.384.7255
Fax: 856.384.7186
E-Mail: mccalgd**At_Symbol_Here**


On Apr 30, 2010, at 2:39 PM, Debbie M. Decker wrote:

> A long time ago, in a galaxy far far away=85=85.I was trained to stand 
> to the side of the regulator, not right in front, when opening the  
> cylinder valve.  Still do!
> Debbie M. Decker, Campus Chemical Safety Officer
> Environmental Health and Safety
> University of California, Davis
> 1 Shields Ave.
> Davis, CA  95616
> (530)754-7964/(530)752-4527 (FAX)
> dmdecker**At_Symbol_Here**
> Co-Conspirator to Make the World A
> Better Place -- Visit and join the conspiracy
> ------------------original message--------------------
>             Long ago, when I was taking welding lessons, the  
> instructor taught us to avert our faces from the regulator gauges  
> when opening a gas tank because of a possible defect in the  
> regulator that would pressurize the gauge and explode the glass.
>             Since that time, I have read several books on  
> laboratory practices and do not recall any of them alluding to the  
> practice of averting one=92s face when opening a gas cylinder.   
> Should they?
> With all the accumulated experience in this group, has anyone heard  

> of this practice or hazard?
>             (Note: My old instructor might have been confusing a  
> defective regulator hazard with the one resulting from using a  
> contaminated regulator with an oxygen cylinder.)
>             Thank you very much,
>             Ben

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