Methodology
Permeation Testing
Ansell Edmont conducts permeation testing in accordance with ASTM Method F739 standards. A specimen is cut from the glove and clamped into a test cell as a barrier membrane (see illustration below). The "exterior" side of the specimen is exposed to a hazardous chemical. At timed intervals, the unexposed "interior" side of the test cell is checked for the presence of the permeated chemical and the extent to which it may have permeated the glove material.
This standard allows a variety of options in analytical technique and collection media. At Ansell Edmont, dry nitrogen is the most common medium and gas chromatography with FID detection is the most common analytical technique. Our Research Department also uses liquids such as distilled water and hexane as collecting media, and techniques such as conductivity, colorimetry, and liquid chromatography for analysis of the collecting liquid.
Degradation Testing
Films of the test material are made. These films are weighed and measured, and then completely immersed in the test chemical for 30 minutes. The percentage of change in size is determined, and the films are then dried to calculate the percentage of weight change. Observed physical changes are also reported. Ratings are based on the combined data.
Gloves Used To Obtain Data for the Immersion Guide
| Type |
Style |
Thickness |
| Supported Nitrile |
Sol-Knit 39-122 |
Not determinable on a supported glove. |
| Unsupported Nitrile |
Sol-Vex 37-165 |
0.56 mm (22 mils) |
| Unsupported Neoprene |
Neoprene 29-845 |
0.43 (17 mils) |
| Supported Neoprene |
Neox 9-922 |
Not determinable on a supported glove. |
| Supported Polyvinyl Alcohol |
PVA 15-552 |
Not determinable on a supported glove. |
| Supported PVC (Vinyl) |
Monkey Grip 3-360 or Snorkel 4-404 |
Not determinable on a supported glove. |
| Natural Rubber (Latex) |
Canners and Handlers 392 |
0.48 mm (19 mils) |
| Neoprene/Latex |
Chemi-Pro 224 |
0.69 mm (27 mils) |
| Barrier Laminated LCP Film |
Barrier 2-100 |
0.06 mm (2.5 mils) |
Gloves Used To Obtain Data for the Splash Guide
| Type |
Style |
Thickness |
| Nitrile |
TNT 92-600 |
0.12 mm (5 mils) |
| Neoprene |
DermaShield 73-701 |
0.18 mm (7 mils) |
| PVC |
DuraTouch 34-100 |
0.17 mm (6.5 mils) |
| Natural |
Conform 69-210 |
0.13 mm (5 mils) |
| Polyethylene |
Poly-D 35-112 |
0.063 mm (1.25 mils) |
|
Chemical Resistance Guide
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