This Standard specifies the photometric, colorimetric and physical property requirements for high-visibility materials for outdoor daytime use, or retroreflective materials for use at night or in other dark conditions to be used for the manufacture of, or for incorporation into industrial safety garments designed to be worn in situations where the wearer needs to be highly visible. Immersible water safety materials such as those used on personal flotation devices are not included.

NOTE: This Standard does not include requirements for the integrity or performance of materials under extremes of temperature, atmospheric conditions, abrasive conditions or any other abnormal use of the material.