Air Permeability
ASTM D 737-1996
The rate of air flow through textile fabrics, measured in cu. ft. of air that passes through the fabric per minute. The greater the cu. ft. air flow, the greater the user comfort.

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Spray Rating
AATCC 22-2001
The resistance of the fabric to wetting by water. A test result of 100 indicates no wetting of the upper surface of the material; score of 90 indicates slight random wetting of upper surface and a score of 50 indicates complete wetting of whole upper surface. A score of less than 50 indicates the wetting through to the underside of the material tested. Desirable test results for material used in splash and spray resistant applications is 90 or 100.

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Static Pressure Suter Rating
AATCC 127-1998
The resistance of the fabric to the penetration of water under hydrostatic pressure. Hydrostatic pressure is the force distributed over an area exerted by water. Hydrostatic rating is inverse to air permeability. The greater the hydrostatic rating, the less the air permeability and comfort of the coat.

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Surface Resistivity
Test Method 76
The surface resistance to static electricity. Measured at 65 degrees F with 20% and less humidity. The lower the test result (i.e., 10₇ ), the greater the static resistance of the material. The higher the test result (i.e., 10₁₂), the lesser amount of static control. Desirable test result scores for static control range from 10₇ to 10₁₀.

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