Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
General Industry Safety Standards
Part 44 - FOUNDRIES
Section R. 408.14461 - Sand mullers

(1) A sand muller, except for a continuous muller which does not require employee exposure, shall have interlocked enclosures over openings to prevent operation when loading or unloading.

(2) For a muller having a sampling door, the employer shall provide, and an employee shall use, a sampling cone (scoop) to obtain a sample.

(3) If a sample cone is used to obtain a sample, the sampling cone shall not contact the mixing mechanism and the employee using the sample cone shall not place his or her hand into the opening.