Attachment 5 Validation Sheeting Colors and Reflective Characteristics.pdf

This is a technical specification attachment for validation sticker equipment and registration materials procurement by the Missouri Department of Revenue. The document establishes retroreflective characteristics standards for validation sheeting used in the manufacturing of validation stickers. The specifications require that the coefficient of retro-reflection be measured on flat, clean validation sheeting in accordance with ASTM E-810 testing methodology at a 0.2 degrees observation angle. Minimum retroreflective values are specified for eleven color options including white, yellow, purple, green, blue, red, orange (neon), black, lime green, and pink (neon), with entrance angles measured at -4 degrees, 40 degrees, and 50 degrees to establish performance baselines across varying lighting and viewing conditions.

The validation sheeting colors are assigned specific candlepower per foot-candle per square foot measurements that decrease as entrance angles increase, indicating that retroreflective performance diminishes at wider angles from the light source. White sheeting demonstrates the highest retroreflective values at all angle measurements, while neon orange, pink, and black demonstrate lower performance across the specified angles. These technical requirements ensure that validation stickers meet standardized visibility and identification standards necessary for equipment registration purposes.