Date: Wed, 21 Dec 2011 10:18:47 -0600
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Sender: DCHAS-L Discussion List <dchas-l**At_Symbol_Here**>
From: Ferm Barret A <FermBarretA**At_Symbol_Here**SAU.EDU>
Subject: Re: Eye protection for working w/borosilicate glass
In-Reply-To: A <37E2AFAA-B661-4D67-B4EE-BC72BE17272A**At_Symbol_Here**>
Didymium glasses are the norm, and a must, for glass working, and are available in prescription lenses.  Chemical splash goggles can be worn over the didymium glasses when needed.  


Barry Ferm


Chemical Hygiene Officer

Biology & Chemistry Laboratory Coordinator

St. Ambrose University

(563) 333-6162




From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Secretary, ACS Division of Chemical Health and Safety
Sent: Wednesday, December 21, 2011 9:27 AM
Subject: [DCHAS-L] Eye protection for working w/borosilicate glass


From:  phil_mckittrick**At_Symbol_Here**


One of our labs uses sealed borosilicate glass tubes for some experiments.  A tech seals several dozen of the tubes with a torch (I know he is using oxygen, I think the fuel is propane, I know it is not acetylene) at one time.  He was complaining about the brightness of the light, so is now wearing safety sunglasses that block 99+% UV.


Anyone have experience with something similar to this?  I have seen the didymium glasses that hobbyists use for glass blowing, but I am not sure what eye protection to provide.  He has tried welders goggles, but found them too dark.




Phil McKittrick

Nalco Company

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