This standard specifies performance requirements for high visibility safety apparel and headweare PPE. For the purpose of this standard, the term "garment" shall be used to mean apparel and headwear PPE. These garments are intended to provide conspicuity to the user in hazardous situations under any light conditions by day and under illumination by vehicle headlights in the dark.
Performance requirements are included for color, retroreflection, and minimum areas, as well as the recommended configuration of the materials. Performance, requirements are also provided for the physical properties of background materials used in the construction of high-visibility safety apparel and headwear. Test methods are provided in the standard to help ensure that a minimum level of visibility is maintained when garments are subjected to ongoing care procedures.