{"data":{"id":"us/30-cfr-7.22","jurisdiction":"us","citation":"30 CFR 7.22","heading":"Definitions.","body":"The following definitions apply in this subpart:\nBrattice cloth. A curtain of jute, plastic, or similar material used to control or direct ventilating air.\nDenier. 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.\nFilm. A sheet of flexible material applied to a scrim by pressure, temperature, adhesion, or other method.\nScrim. A substrate material of plastic or fabric laminated between or coated with a film.\nVentilation tubing. Rigid or flexible tubing used to convey ventilating air.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER B—TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS","PART 7—TESTING BY APPLICANT OR THIRD PARTY","Subpart B—Brattice Cloth and Ventilation Tubing"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"80f9a1b08700cdc78a4cd933a5d65f0c1b1623bf6190c86811e32247ab1bedb9","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-7.21","next":"us/30-cfr-7.23"},"notice":"GroundRules: Original legal text. Not legal advice."}