Correct, the test done by TLARGI is for swell of rubbers by immersion for an extended time. This is obviously different than a glove permeation test in minutes.
The point I trying to make is that if the chemical you are interested in is not listed on a glove chart, then you could use the TLARGI chart as a starting point to understand which glove type could potentially be used and which won't have
a shot. You'd still have to do the permeation test to determine the required glove thickness and understand maximum wear time.
Also, the TLARGI chart is commonly referenced in industry for rubber selection. Materials with a rating of 1 are considered suitable for long term service. So, researchers can also use it to select elastomers for experimental set-ups and
replacement parts in old equipment.
Thank you,
Yaritza Brinker
260.827.5402
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
On Behalf Of Monona Rossol
Sent: Monday, September 20, 2021 11:15 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: Re: [DCHAS-L] Glove permeation chart - not company
Interesting, but it appears that it is resistance and not permeation they are testing for. Some chemicals go through polymers without showing any signs of having
done so. They appear unchanged and would appear to have good resistance to chemical damage. So the ASTM test for permeability in minutes is what I recommend for use. Every manufacturer also has information on resistance and degradation, but you can almost
detect that yourself with observation.
Monona
-----Original Message-----
From: Yaritza Brinker <YBrinker**At_Symbol_Here**FELE.COM>
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Sent: Mon, Sep 20, 2021 9:45 am
Subject: Re: [DCHAS-L] Glove permeation chart - not company
I addition to everyone's fantastic advice, I'd like to point out that the ACS Rubber Division's Los Angeles Rubber Group developed a chemical resistance chart for
rubber materials. This chart can be useful when the subject chemical is not listed in the manufacturer's glove chart. At a bare minimum, it will give you an indication of potential issues with various glove types.
Thank you to everyone who provided useful answers and resources on this thread. As always, it is interesting to see how seasoned professionals take on even the most
basic of questions. Also, I always enjoy reading the historical perspectives that several members here bring to discussions like these. As you well know, newbies benefit far more from mentorship than a Google search.
NSF Graduate Research Fellow (2018-2021)
Joint Safety Team, Founding Member (2018-2021)
Pinkhassik Group, Department of Chemistry (2016-2021)
University of Connecticut
"To change a community, you have to change the composition of the soilÉ
If you want to meet with me, come to the garden with your shovel so we can plant some sh-t."
"Argue for your limitations
and sure enough they're yours."
"You know, farming looks mighty easy
when your plow is a pencil, and you're
a thousand miles from the corn field."
"Sometimes you just have to nod
*Message sent from a system outside of UConn.*
The reason why I didn't include Kimberly-Clark and certain other manufacturers was based upon my chemistry experience from high school through research at 3M.
Although it dates me, during that period, from 1961 until 1976, the use of "disposable/single use" examination gloves was not only unthinkable but also forbidden.
I was acquainted only with and used the Ansell Solvex (nitrile), neoprene and natural latex rubber gloves with caliper thickness 15mil - 22mil for any and all work on the open lab bench, in a hood/cabinet or glove box.
I may be "old fashioned" but also I have at home a supply of those type of gloves for housework. I do have a box of 4mil nitrile examination gloves but use them only
for medical and personal hygiene reasons.
Be Safe and Stay Healthy!
3M Personal Safety Division - Retired
ACS/DCHAS Founding Member
John, you can add to the wonderful list of manufacturers Kimberly Clark who makes the thin examining gloves that most chemistry students
and their teachers that I see actually use. And they do have a chart as I mentioned. But they also clearly say in their brochure that those gloves should be removed and replaced if a chemical even splashes on them. Monona
As per the replies to your request, the consensus is that you should work with the data as "manufacturer specific" and not "generic."
Here are two helpful information sheets from W. W. Grainger, Quick Tips #166 & #191 on chemical resistant gloves.
Also, you may want to speak to someone at the Technical Service Department of any one of the following manufacturers and Grainger for help.
-
Ansell
-
Grainger (distributor)
-
Magid Glove & Safety (manufacturer/distributor)
-
MAPA
-
North by Honeywell
-
SHOWA
Be Safe and Stay Healthy!
3M Personal Safety Division - Retired
ACS/DCHAS Founding Member
you also have to take into account the glove thickness, which could vary by brand. Some nitrile gloves are 4 mm, others 8 mm...
I don't think I would want a generic chart, so much depends on the mfg. And they have quite a bit of incentive to get it right...$$$$$
Nelson Schlatter (Ansell)
Caution: If you are going to be citing the NIOSH Recommendations for Chemical Protective Clothing for glove guidance - check when it was published, it is severely
dated.
Monona is right, look at the individual glove manufacturer for testing permeation and degradation information. If you do a Google search, you'll end up with generic
information that will be unreliable - depending upon which glove has been specified.
Suppliers and Google will provide generic "data" but nothing I would rely upon when you really need to confirm adequate protection.
It's late and I can't remember the name of the organic chemist who started the testing work at Ansell. He developed the first spreadsheet, which later turned into
their database. When I ran into a new molecule that was going to be tested for toxicity as an investigational new drug, if he could not refer to a very close analog to provide protection, I could send him a sample and he would test to provide a recommendation.
It depends upon what you are trying to protect against. Is a generic, possibly diluted level of protection adequate or are you trying to protect from a true hazard?
The Recommendations for Chemical Protective Clothing database is a contractor's product procured by the National Institute for Occupational
Safety and Health (NIOSH). Thus, the recommendations contained in this database do not necessarily reflect NIOSH policy.
|
The Recommendations for Chemical Protective Clothing database is a contractor's product procured by the National Institute for Occupational
Safety and Health (NIOSH). Thus, the recommendations contained in this database do not necessarily reflect NIOSH policy.
|
I am looking for a chart of chemical permeation of different types of gloves - BUT I am trying to find one that isn't produced by a for-profit company.
Does anyone know if this exists? If so, link would be most helpful!
NSF Graduate Research Fellow (2018-2021)
Joint Safety Team, Founding Member (2018-2021)
Pinkhassik Group, Department of Chemistry (2016-2021)
University of Connecticut
"To change a community, you have to change the composition of the soilÉ
If you want to meet with me, come to the garden with your shovel so we can plant some sh-t."
"Argue for your limitations
and sure enough they're yours."
"You know, farming looks mighty easy
when your plow is a pencil, and you're
a thousand miles from the corn field."
"Sometimes you just have to nod
Margaret A. Rakas, Ph.D.
Lab Safety & Compliance Director
Clark Science Center
413-585-3877 (p)
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