ASTM E 2072 : 2014

1.1This specification covers minimum performance requirements for newly applied photoluminescent (phosphorescent) safety materials used to provide supplemental markings of escape routes, emergency equipment, and obstructions along the escape route. (see also Test Method E2073 and Guide E2030).

1.2This specification establishes minimum luminance values for photoluminescent (phosphorescent) markings.

1.3This specification applies to all types of photoluminescent (phosphorescent) markings, including but not limited to plastics, coatings, ceramics, films, etc.

1.4This specification does not cover potentially diminished performance due to wear and tear and aging.

1.5This specification applies only to photoluminescent (phosphorescent) markings emitting the majority of spectral energy within the 515 to 535 nanometer range.

1.6When reference is made regarding photoluminescence in the text of this standard, it implies phosphorescence.

1.7The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.