['Specialized Industries']
['Mining']
10/22/2024
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The following definitions apply in this subpart:
Brattice cloth.
A curtain of jute, plastic, or similar material used to control or direct ventilating air.
Denier.
A unit of yarn size indicating the fineness of fiber of material based on the number of grams in a length of 9,000 meters.
Film.
A sheet of flexible material applied to a scrim by pressure, temperature, adhesion, or other method.
Scrim.
A substrate material of plastic or fabric laminated between or coated with a film.
Ventilation tubing.
Rigid or flexible tubing used to convey ventilating air.
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