N.H. Code Admin. R. Lab 1403.02
Abrasive Blasting
Effective Nov 22, 2025#4118 eff 8-22-86, EXPIRED: 8-22-92 New. #6684, eff 2-4-98, EXPIRED: 2-4-06 New. #8606, INTERIM, eff 4-12-06, EXPIRED: 10-09-06 New. #8796, eff 1-11-07; ss by #10809, eff 4-9-15; ss by #14431, eff 11-22-25, EXPIRES: 11-22-35Commissioner, Department of Labor
The employer shall ensure compliance with the following requirements:
- (a) Blast cleaning nozzles shall be equipped with an operating valve which shall be held open manually. A support shall be provided on which the nozzle can be mounted when not in use; and
- (b) Blast cleaning enclosures shall be exhaust ventilated in such a way that a continuous inward flow of air shall be maintained at all openings in the enclosure during the blasting operation.
Source. #4118 eff 8-22-86, EXPIRED: 8-22-92 New. #6684, eff 2-4-98, EXPIRED: 2-4-06 New. #8606, INTERIM, eff 4-12-06, EXPIRED: 10-09-06 New. #8796, eff 1-11-07; ss by #10809, eff 4-9-15; ss by #14431, eff 11-22-25, EXPIRES: 11-22-35