Ariz. Admin. Code § 11-1-1829
Current through Register Vol. 31, No. 1, January 3, 2025
Air that has passed by an opening of any unsealed abandoned area and contains 0.25% or more of flammable gas shall not be used to ventilate working areas. Examinations of such air shall be conducted during the preshift examination required by R11-1-1847.
Ariz. Admin. Code § R11-1-1829