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Next by Date: Subject: Re: [DCHAS-L] bulk solvent storage room information Date: Wed, 26 Sep 2018 09:35:56 -0700 Author: Penny Manisco |
This is a very interesting topic to us as well, thanks to Linda for asking it.
We are nearing completion of our bulk storage area. It is designed to handle bulk container no larger than 20L (5 gal.) - outside the rated storage room is an
ante room with a fume hood. The idea is that the 5 gallon drums can be dispensed in the hood. I see the first ergonomic issue here is lifting the 5 gallon pail into the hood.
It was my thought that researchers could use a tipper inside the fume hood for dispensing into smaller containers using stainless funnels - this would eliminate
the contamination concerns of degraded polymer pump parts.
Many graduate students and research associates are just fine with pouring by hand into their container right on the floor in the storage area and dealing with
the exposure (provided it's not toxic - ideally using spill pads and secondary containment). It laziness - we discourage that practice when we observe it, even if it is methanol or acetone. We will ask them to put it on a cart, go back to their lab and move
the pail from the cart to the hood and dispense there.
So I am wondering É.Stanley, why do you discourage gravity dispensing?
Be well,
James Saccardo, CHMM, MPH
Environmental Health and Safety Officer
From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU]
On Behalf Of Olmsted, Linda
Sent: Wednesday, September 26, 2018 8:56 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] bulk solvent storage room information
Thanks for the tips Sheila and Stanley. I am not sure if we will go with gravity dispensing. I will look into those products mentioned. I appreciate the information given.
-Linda
On Tue, Sep 25, 2018 at 6:45 PM Stanley Howell <schowell**At_Symbol_Here**uci.edu> wrote:
We have unfortunately had mixed experiences with the Goat Throat pumps about 1-2 years ago. While we worked with Nancy to ensure that the seals were tested for resilience against the intended solvents, we saw signs of degradation of the polymer dip-tubes and pump-head casing for most solvents tested within the initial 30-day pilot. A few of the labs began complaining about potential contamination of their solvents which prompted a quick abort of the pilot.
Switching to a stainless steel dip-tube would help with the worst of this problem, but the underside of the pump-head (which is exposed to the container headspace) similarly showed signs of degradation which made us weary about the long-term prospects of these pumps.
We are currently exploring the BŸrkle line of solvent pumps, which offer a more traditional stainless-steel body (for resilience and easy B/G) and closable ball-valves which help to keep the vapors in check when not in use (which was a significant selling point for us when first considering the Goat-Throat). These are now carried by VWR which mak
We don't particularly encourage gravity dispensing from the 5-gal containers, but when that is preferred, we encourage the use of the tilt stands (such as the Morse PailPro, Vestil Pail Tipper, Champ 2259 or Justrite 11273) to help remove some of the ergonomic issue and help make sure that these containers are not stored horizontally (when used with a safety faucet).
Regards,
Stanley Howell, Ph.D
Chemical Safety Program Manager
Chemical Hygiene Officer
Environmental Health & Safety
(949) 824-8342
schowell**At_Symbol_Here**uci.edu
University of California, Irvine
4600 Health Sciences Rd.
Irvine, CA 92697-2725
From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Kennedy, Sheila
Sent: Monday, September 24, 2018 3:07 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] bulk solvent storage room information
The only pump we have found for 5-gallon (20-L) cans that doesn't leak is the GoatThroat pump (GoatThroat.com).
Sheila M. Kennedy, C.H.O.
Safety Coordinator | Teaching Laboratories
Chemistry & Biochemistry |University of California, San Diego
9500 Gilman Dr. | La Jolla, CA 92093-0303
(858) 534 - 0221 | MC 0303 | YORK HALL 3150
s1kennedy**At_Symbol_Here**ucsd.edu | Student Lab Safety, CHEM Teaching Labs
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> On Behalf Of Olmsted, Linda
Sent: Monday, September 24, 2018 11:41 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] bulk solvent storage room information
Hello,
We are in the process of renovating a bulk solvent storage room in our Chemistry building. We will be dispensing from 5 gallon containers. We previously dispensed from 55 gallon drums. We are in the design phase for shelves, racks and dispensing systems and want to maximize storage space while finding the best dispensing tools to help minimize spills. Our stockroom has priced square and round 5 gallon containers and we are now looking into dispensing racks and tools.
If you currently dispense solvents from 5 gallon containers then I am looking for your insight on what set up you have in place and what works best for you (or what did not work well). Suggestions on products you use such as rotating dispensing racks for gravity dispensing would be great.
Thank you,
--
Linda Olmsted, CCHO
Chemical Hygiene Officer
Environmental Health & Safety
Brown University
--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org Follow us on Twitter **At_Symbol_Here**acsdchas
--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org Follow us on Twitter **At_Symbol_Here**acsdchas
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--
Linda Olmsted, CCHO
Chemical Hygiene Officer
Environmental Health & Safety
Brown University
401-863-7697
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