3.1.1 If the system is intended to be installed
in public spaces, the test facility should be designed so that participants
are required to navigate to a pre-designated exit across a public
space, where the shortest distance to that exit is not along a wall.
A minimum of two exits should be provided to test the ability of participants
to identify and proceed to an exit within an open space. An additional
fail exit should be located 2 to 3 m from each correct exit.
3.1.2 The test room should be not less than 15
m by 10 m with the start point and pre-designated exit being on the
long sides, diagonally opposite each other, such that the distance
around the walls is approximately equal in either direction. The density
of the smoke should be great enough to prevent a participant from
being able to see no more than half to two-thirds of the distance
to the nearest exit OD 0.1 m-1. Direct distance between
start and a correct exit should be not less than 12 m.