| Degradation results for Best
N-Dex 7005 (4 mil thickness) nitrile disposable gloves. Read explanations
following table. Do NOT make this information available without including all
information. Table and following text reproduced from Best Guide, January 2000.
To see the color information properly your browser color settings must not override
this document's. |
| |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| acetaldehyde |
E |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
G |
| HOAc 84% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| acetone |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| acetonitrile * |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| acrylonitrile * |
E |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
G |
| NH4OH 29% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| amyl acetate |
E |
G |
G |
G |
G |
F |
F |
F |
F |
F |
F |
F |
| amyl alcohol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| benzaldehyde |
G |
P |
N |
N |
N |
N |
N |
N |
N |
N |
N |
N |
| benzene |
E |
G |
G |
G |
G |
G |
G |
G |
G |
G |
G |
G |
| butanol * |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| butyl acetate |
E |
G |
G |
F |
F |
F |
F |
F |
F |
F |
F |
F |
| carbon tet * |
E |
E |
E |
E |
E |
E |
E |
G |
G |
G |
G |
G |
| cellosolve acetate * |
E |
G |
G |
F |
F |
P |
P |
P |
P |
P |
P |
P |
| chlorobenzene |
G |
P |
P |
N |
N |
N |
N |
N |
N |
N |
N |
N |
| chloroform |
F |
P |
N |
N |
N |
N |
N |
N |
N |
N |
N |
N |
| cresol |
E |
G |
F |
P |
N |
N |
N |
N |
N |
N |
N |
N |
| cyclohexane |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| cyclohexanol * |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| cyclohexanone |
G |
F |
P |
P |
N |
N |
N |
N |
N |
N |
N |
N |
| di-n-butyl
phthalate |
E |
E |
G |
G |
G |
F |
F |
F |
F |
P |
P |
P |
| o-dichlorobenzene |
G |
P |
P |
N |
N |
N |
N |
N |
N |
N |
N |
N |
| 1,2-dichloroethane |
F |
P |
P |
N |
N |
N |
N |
N |
N |
N |
N |
N |
| diesel Fuel |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| diethanolamine |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| diethylamine |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| di-isobutyl ketone |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| dimethylacetamide |
G |
F |
P |
P |
P |
P |
N |
N |
N |
N |
N |
N |
| DMF * |
E |
G |
G |
G |
F |
F |
F |
F |
F |
F |
F |
F |
| dimethylsulfoxide |
E |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
G |
| 1,4-dioxane * |
E |
G |
G |
G |
F |
F |
F |
F |
F |
F |
F |
F |
| ethanol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| ethyl acetate |
E |
E |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
| ethylbenzene |
E |
G |
G |
F |
F |
P |
P |
P |
P |
P |
P |
P |
| ethyl ether |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| ethylene glycol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| formaldehyde 37% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| formic acid 90% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| freon 76-13-1 |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| furfural * |
E |
G |
F |
F |
P |
P |
P |
N |
N |
N |
N |
N |
| gasoline (unleaded) |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| glutaraldehyde 50% |
E |
E |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
| heptane |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
|
|
| |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| hexane |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| hydraulic fluid |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| HCl 37% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| isobutanol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| isooctane |
E |
E |
E |
E |
E |
E |
E |
E |
E |
G |
G |
G |
| isopropyl alcohol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| Kerosene |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| lactic acid 85% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| methanol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| methylamine |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| methylene chloride |
E |
G |
G |
G |
G |
G |
G |
G |
G |
G |
G |
G |
| MEK |
E |
E |
G |
G |
G |
G |
G |
G |
G |
G |
G |
G |
| MIBK |
E |
G |
G |
F |
F |
F |
F |
F |
F |
F |
F |
F |
| methyl methacrylate |
G |
P |
P |
P |
P |
P |
P |
P |
P |
P |
P |
P |
| methyl t-butyl ether |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| N-methylpyrrolidone |
E |
G |
G |
G |
F |
F |
F |
F |
F |
P |
P |
P |
| mineral oil - light |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| mineral spirits |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| morpholine |
E |
G |
G |
G |
G |
G |
G |
G |
G |
F |
F |
F |
| nitric acid 70% |
E |
E |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
| nitrobenzene * |
G |
P |
N |
N |
N |
N |
N |
N |
N |
N |
N |
N |
| n-octanol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
G |
G |
| oleic acid 98% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| pentane |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| perchloric acid 70% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| perchloroethylene |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
G |
G |
| petroleum ether |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| phosphoric acid 85% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| KOH 45% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| n-propanol |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| NaOH 50% |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| stoddard solvent |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| sulfuric acid 97% |
E |
G |
F |
P |
P |
N |
N |
N |
N |
N |
N |
N |
| tetrachloroethylene |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
G |
G |
| tetrahydrofuran |
G |
F |
P |
P |
P |
P |
P |
P |
P |
P |
P |
N |
| toluene |
E |
G |
G |
G |
G |
G |
G |
G |
G |
G |
G |
G |
| 1,2,4-trichlorobenzene |
|
|
|
N |
N |
N |
N |
N |
N |
N |
N |
N |
| 1,1,1-trichloroethane |
E |
E |
E |
G |
G |
G |
G |
G |
G |
G |
G |
G |
| trichloroethylene |
G |
F |
P |
P |
N |
N |
N |
N |
N |
N |
N |
N |
| tricresyl phosphate |
E |
E |
E |
G |
G |
F |
P |
P |
P |
P |
P |
N |
| triethanolamine |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| turpentine |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
E |
| xylene |
E |
G |
G |
F |
F |
F |
P |
P |
P |
P |
P |
P |
|
* CAUTION: According to the American Conference of Governmental
Industrial Hygienists (ACGIH), this is a very hazardous chemical and is absorbed
directly through intact skin. Although there may be some intermittent-contact
applications involving this chemical where the N-DEX would be suitable, we urge you to
exercise extreme caution and evaluate for yourself whether or not the N-DEX is appropriate
in this particular chemical for your specific application. We suggest layering of
gloves when handling this chemical and recommend that the N-DEX be disposed of immediately
(instead of merely being wiped off) if intermittent contact does occur.
| E |
excellent, 0 - 10%
weight change (white) |
Ratings based on degradation as described
following. No information available for permeation, which could be substantial and
undetectable. Do NOT continue to wear gloves after any known chemical contact which
could cause permeation or degradation. Grossly contaminated gloves should be cleaned
and disposed of into regular trash, or disposed of as hazardous waste. |
| G |
good, 11 - 20% weight
change (green) |
| F |
fair, 21 - 30% weight
change (yellow) |
| P |
poor, 31 - 50% weight
change (orange) |
| N |
not recommended,
>50% weight change *red) |
|
| |
|
-- CONTINUED -- |
This guide is provided to show you that for brief
contact, such as splash or intermittent exposure, you should seriously consider Best
N-DEX nitrile gloves as suitable hand protection against many specific chemicals.
The information in our guide is intended to help you determine the general suitability of
our N-DEX gloves for such applications and does not constitute any form of warranty.
The level and type of protection needed for your specific application, of course, is
ultimately your responsibility; however, we hope this guide will help you determine
whether or not our N-DEX is the proper glove for the job.
If you have any questions about the use of this
guide, the test methods used to generate the data in the guide or specific chemicals or
chemical mixtures in which our N-DEX would be suitable, please call Don Groce, our
analytical lab manager, at 1-800-241-0323. Don is an analytical chemist and will
help you determine if our N-DEX is the glove for your particular application.
Presently, there is no ASTM or other standard
for degradation testing of gloves. Proposed ASTM draft protocol 23.30.03 rates
gloves based on percent weight change after four hours total chemical immersion (the
"worst case" scenario). Although this test method generates excellent
information, it is categorically biased against thin-gauge gloves such as our N-DEX.
Not all applications fit the "worst case" scenario; in many, the only potential
exposure is from splash or intermittent contact with a chemical. In these
applications, our N-DEX may be a suitable glove for the job.
The third chemical listed in our guide, Acetone, is a
perfect example. Using data generated by ASTM draft protocol 23.30.03, which
simulates the "worst case" scenario, our 8-mil N-DEX would not be
recommended. However, using data generated by our own test method, which simulates
intermittent chemical exposure, not only would our N-DEX Plus be recommended, but our
6-mil N-DEX Long Cuff and even our 4-mil would be suggested for on-the-job evaluation.
Chemists in the Best Analytical Lab developed this
state-of-the-art method in response to numerous questions from the field about the N-DEX's
chemical-resistance characteristics and because of the lack of an unbiased,
existing test method simulating brief chemical exposure to thin gauge gloves.
Our method is similar to ASTM draft
protocol 23.30.03; however, in our test, brief intermittent chemical immersions were
simulated instead of total chemical immersion for four hours. One brief exposure was
performed every ten minutes for two hours for a total of 12 exposures. The weighed
glove material was quickly dipped into a test chemical. Degradation was measured as
the percent weight change. (See key on inside).
In neither our test nor ASTM draft protocol 23.30.03
are any other physical parameters, such as tensile strength or modulus change,
measured. Significantly, however, visual observation shows that our N-DEX nitrile
gloves almost never become tacky, as do thin-gauge natural rubber gloves, after chemical
exposure. The only visual, physical changes are slight swelling and, sometimes,
discoloration, depending on the chemical.
NOTE: To help maintain their integrity, N-DEX
nitrile gloves should always be blotted dry when a splash occurs. When handling
acids and bases, the glove should be rinsed first, then blotted dry. Gloves should
be changed at the first sign of swelling to minimize exposure.
The information in this guide applies to Best N-DEX
gloves only. Since the actual use of our gloves may differ from that anticipated by
us, you must determine their suitability for your specific application through on-the-job
testing. Upon written request, we will provide glove or material samples to aid your
evaluation.
Remember that conditions in our lab may not totally
simulate actual job conditions; for example, heat and relative humidity may differ and can
alter test results significantly. Remember, too, that lab testing is performed on
pure chemicals, not mixtures, which would also alter the results.
This guide is designed to help you evalutate the
N-DEX's suitability for your particular application. Neither this guide nor any
other statement made by or on behalf of Best Manufacturing Company herein is a warranty
that any Best glove is suitable for a particular purpose, and Best shall not be liable to
anyone with regards to this information.
We emphasize that our N-DEX nitrile gloves are not
designed for total chemical immersion; they provide protection from splash and
intermittent contact only.