30 CFR § 14.5
Test samples
July 29, 2020
Upon request by MSHA, the applicant must submit 3 precut, unrolled, flat conveyor belt samples for flame testing. Each sample must be 60 ± 1⁄4 inches long (152.4 ±0.6 cm) by 9 ± 1⁄8 inches (22.9 ±0.3 cm) wide.