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Subject: Re: [DCHAS-L] safety of refilling gas cylinder with compressed air

Date: Feb 20, 2026 18:34 UTC

Author: 000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU

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Subject: [DCHAS-L] 2026 ACS Spring CHAS-AT-A-GLANCE

Date: Feb 21, 2026 03:12 UTC

Author: Monica Soma Hensley <mnyansa**At_Symbol_Here**MTU.EDU>

From: James Kaufman <jkaufman**At_Symbol_Here**LABSAFETYINSTITUTE.ORG>

Subject: Re: [DCHAS-L] Solvent Dispensing Systems

Date: Feb 20, 2026 23:42 UTC

Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>

Message-ID: <CAHk9oETZH0KpjoCcJfYFMWH1KVsPQuA9BuxZ3dcviaxRHyB-GQ**At_Symbol_Here**mail.gmail.com>

In-Reply-To: <CAM1PioMfCBS0HyA_qpFvf7O8nLakZfZ1qwibdaYA4bZXg5SNfw**At_Symbol_Here**mail.gmail.com>

Demystify: 
Bonding and grounding is a must.

James A. Kaufman, Ph.D.
Founder, LSI
Serving Industry, Government, & Academia for 50 years
508-574-6264

On Fri, Feb 20, 2026, 5:14 PM James Keating <james.k.keating**At_Symbol_Here**gmail.com> wrote:
Much of the decision will be based on the health and safety hazards associated with the solvents. If you use a large volume of solvents then a well ventilated storage storage room with appropriate atmosphere monitoring may be needed. I think we all know that storage of hazardous substances in cabinets under fume, hoods can get out of hand.

Dispensing flammable solvents may require bonding the dispensing and receiving containers and the receiving container must be labeled properly - always.

Jim Keating 



On Fri, Feb 20, 2026, 12:16 PM Jeffrey R. Cogswell <Jeffrey.R.Cogswell**At_Symbol_Here**dartmouth.edu> wrote:
Hello

I'm looking for information on who has large-volume solvent dispensing systems at their institution and people's experience with them.
To be clear, I'm NOT looking for information on solvent purification systems for synthesis (we have plenty of those on campus); I'm investigating whether a solvent dispensing room/setup is cost-effective, and I need to provide our facilities director with examples of the setup. I'm interested because I feel it would solve many issues, such as bonding and grounding, hood space, solvent storage (especially with everyone buying 20L cans these days), and filling kegs for the purification systems. 

-Jeff

----------------------------------------------------

Jeffrey R. Cogswell, Ph.D.
Research and Chemical Hygiene Officer
Environmental Health & Safety
Dartmouth College
37 Dewey Field Rd.
Hanover, NH 03755
(o) 603-646-9355
http:​//www.dartmouth.edu/~ehs/ 

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