R 408.16351 Acid rooms, acid towers, and acid tanks.

Rule 6351. (1) An employer shall ensure that the employee is provided with eye protection, a supplied air respirator, and a personal fall protection system that meets the requirements of General Industry Safety and Health Standard Part 33 “Personal Protective Equipment,” as referenced in R 408.16302, during inspection, repairs or maintenance of acid towers. The line shall be extended to an attendant stationed outside the tower opening. (2) Walkways, stairs, and other equipment in acid rooms, acid towers, and acid tanks shall be inspected monthly for corrosion and replaced or repaired where any part shows a defect affecting employee safety. (3) Where hoops are used on acid tanks, the hoops must be made of rods rather than flat strip stock and be inspected and maintained as prescribed in subrule (2) of this rule. (4) Pressure tanks-accumulators shall be inspected semiannually as prescribed in the ASME Boiler and Pressure Vessel Code, Section VIII, “Unfired Pressure Vessels,” 1989 with addenda, as adopted in R 408.16302. (5) An employer shall ensure that when lead burning is performed within tanks, fresh air is forced into the tanks so that fresh air will reach the face of the employee first and the direction of the current will never be from the source of the fumes toward the face of the employees. Supplied air respirators, such as constant-flow type, shall be provided as required in Occupational Health Standard Part 451 “Respiratory Protection,” as referenced in R 408.16302.