Section 325.51152. Definitions.

(1) As used in these rules:

(a)   "Act" means Michigan occupational safety and health act of 1974 PA 154, MCL 408.1001 to MCL 408.1094.

(b)   "Action level" means a concentration of EtO of 0.5 parts EtO per million parts of air (0.5 ppm) calculated as an 8-hour, time-weighted average.

(c)   "Authorized person" means any person specifically authorized by the employer whose duties require the person to enter a regulated area, any person entering such an area as a designated representative of employees for the purpose of exercising the right to observe monitoring procedures under R 325.51176, or any other person authorized by the act.

(d)    "Director" means the director of the Michigan department of licensing and regulatory affairs or his or her designee.

(e)     "Emergency" means any occurrence which is likely to or does result in an unexpected release of ethylene oxide, such as equipment failure, rupture of containers, or failure of control equipment.

(f)   "Employee exposure" means exposure to airborne EtO that would occur if the employee were not using respiratory protective equipment.

(g)     "Ethylene oxide" or "EtO" means a 3-membered ring organic compound, chemical formula C2H4O.

History: 1988 AACS; 2000 AACS; 2015 AACS.