Photoluminescent safety markings may be used to indicate the direction of the means of egress (escape route).

Note 1—Specification E 2072 covers photometric requirements for photoluminescent (phosphorescent) safety materials.

Photoluminescent safety markings can be divided into the following categories:

4.2.1 Floor Mounted Markings—These markings include floor tiles, stair treads, stair nosings, floor inserts, tactile warning strips, coatings, epoxy casting resins, and other markings attached to the floor.

4.2.2 Wall Mounted Markings—These markings include coatings, wall bases, tapes, corner guards, signage, exit maps, guidance strips, and other markings attached to walls, doors, handrails, columns, and other obstructions.

1.1 This guide describes recommended uses and information on installation of photoluminescent safety markings. This guide does not establish a standard practice to follow. Required markings shall be installed in accordance with applicable building codes.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.