Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
General Industry Safety Standards
Part 63 - PULP, PAPER, AND PAPERBOARD MILLS
SPECIFIC PROVISIONS
Section R. 408.16355 - Blowing a batch type digester

(1) A signal device such as a bell, horn, siren, or light shall be installed in a batch type digester or blow pit room and chip bin and used before and during blowing of the digester.

(2) A signal shall be used to warn an employee in a chip bin before loading the batch type digester.

(3) A blow-off valve shall be opened slowly, and the valve shall be left open until the digester cook signals the blow is completed.

(4) A digester cover shall not be removed until the blow has been completed. An employee removing a digester cover shall wear protective equipment to guard against burns from hot stock and steam.