One last precaution about "kits." In the past, one was advertising that it was "hydrofluoric acid-free." A look at the MSDS (at that time) showed it was hydrochloric acid and sodium fluoride!
The art and and craft manufacturer's claims and labels should NEVER be accepted as accurate. Always get the SDS and even then..................
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Monona Rossol, M.S., M.F.A., Industrial Hygienist
President: Arts, Crafts & Theater Safety, Inc.
Safety Officer: Local USA829, IATSE
181 Thompson St., #23
New York, NY 10012 212-777-0062
-----Original Message-----
From: Aaron's Phone <cycling1**At_Symbol_Here**VERIZON.NET>
To: DCHAS-L <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Sent: Fri, Oct 13, 2017 11:45 am
Subject: Re: [DCHAS-L] HF concentration and gluconate gel
Agreed Harry. If folks in the lab are working with anything that has any concentrations of HF they should have the HF kits within easy access and those folks should be included in an HF haz comm annually.
Hopefully the site medical and or EMS are notified about all labs using or potentially using and or creating HF in their work.
Have to remember that some reactions create HF. The chemist should know this, no matter the concentration..
All the best for a healthy and safe weekend.
Aaron
Sent from Aaron's iPhone.
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For more information about the DCHAS-L e-mail list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org
Follow us on Twitter **At_Symbol_Here**acsdchasJeff,
I'm not a physician here, but here's my take:
Honeywell's guide does give cutoff concentrations to define "dilute."
H
From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Jeffrey Lewin
Sent: Friday, October 13, 2017 9:47 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] HF concentration and gluconate gel
I received a cold call for gluconate gel kits this morning that I sent on to departmental CHO's. Someone asked if they should have kits available for low concentrations of HF (<0.1%).
Does anybody have a HF "cutoff" where they don't require/recommend kits be immediately available in the laboratory?
Jeff
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Jeff Lewin
Chemical Safety Officer
Compliance, Integrity, and Safety
Environmental Health and Safety
Michigan Technological University
Houghton, MI 49931
O 906-487.3153
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