(1) Each fire-separated section of a building which is a work place must have at least two exits for escape purposes and the number and location of exits must be such that any point on the floor is not further than 20 m from one of the exits.
(2) Only exits with vertically hinged swinging doors may be considered as exits for the purposes of this clause.
(1) Mechanical or natural ventilation must be via low-level, exhaust ducting in a wall and a fixed, open, floor-level, fresh-air inlet ducting in the opposite wall such as to ensure a cross flow of the ventilation over the complete working area.
(2) Mechanical ventilation must provide not less than 6 air changes per hour.
(3) The ventilation fan and exhaust ducting must be arranged in such a manner as to—
produce a negative pressure within any exhaust ducting within the work place so that a leak in the ducting will not vent exhaust air back in to the work place; and
vent the exhaust air to the atmosphere so as to prevent recirculation of that exhaust air.