Safety Products Michigan

To detemine which glove is best suited to protect against any given chemical the following test are conducted.

Glove Permeation Testing

Permeation testing is goverened by ASTM Method F739 standards. A specimen membrane is cut from the glove and clamped accross a  test cell as a barrier. One side of the barrier is exposed to a hazardous chemical.  In intervals, the unexposed side of the test cell is checked for evidence of the permeated hazardous chemical.  The extent to which it may have permeated the glove material is also measured.

This standard allows a variety of options in analytical technique and collection media.  Dry nitrogen is the most common medium and gas chromatography with FID detection is the most common analytical technique. The most common collecting media liquids are distilled water and hexane, and techniques such as conductivity, colorimetry, and liquid chromatography for analysis of the collecting liquid.

Glove Degradation Testing

The glove material is stretch accross a vessel.  The glove material barrier is weighed and measured.  It is then completely immersed in the test chemical for 30 minutes.  Key measurements are the percentage of change in size, and the percentage of weight change. The material is dried to determine weight change. Observed physical changes are also reported and a ratings is given based on the combined data.

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