An extra main door shall be so placed and kept standing open, as to be out of reach of accident, and so fixed that it can be at once closed in the event of an accident to the doors in use.
52 P.S. § 70-516
An extra main door shall be so placed and kept standing open, as to be out of reach of accident, and so fixed that it can be at once closed in the event of an accident to the doors in use.
52 P.S. § 70-516