From: Rita Kay Calhoun <r.calhoun**At_Symbol_Here**MOREHEADSTATE.EDU>
Subject: Re: [DCHAS-L] Upper limit of pH hazards
Date: Mon, 31 Oct 2016 17:07:15 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: BY2PR02MB2187CC492D4FF7578BAAE68E4AE0**At_Symbol_Here**BY2PR02MB218.namprd02.prod.outlook.com
In-Reply-To <67518ED493A5794FB21A7CA33CD03C7A1BBF8857**At_Symbol_Here**EX10MBOX03.pnnl.gov>


Because not all chemicals are hazardous.
Also, wearing gloves all the time can encourage bad technique and give a false sense of security.

Kay

-----Original Message-----
From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Alnajjar, Mikhail S
Sent: Monday, October 31, 2016 12:44 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Upper limit of pH hazards

The real question is; why would one work actively in a chemistry lab without gloves? However if the question needs to be answered, I would say pH of 6, 7, and 8 would be save; per experience.

Mikhail

-----Original Message-----
From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Stuart, Ralph
Sent: Monday, October 31, 2016 7:49 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] Upper limit of pH hazards

Does anyone have a rule of thumb for how high pH can go before gloves are required?

Thanks for any help with this.

- Ralph

Ralph Stuart, CIH, CCHO
Chemical Hygiene Officer
Keene State College

ralph.stuart**At_Symbol_Here**keene.edu

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