Specifies performance requirements for two types of discrete retroreflectors which have higher photometric performance than sheet materials specified in AS/NZS 1906.1. The first type of device is intended to provide roadside delineation at night. The dimensions specified make them suitable for attachment to 100 mm wide guideposts. The second type of device is intended for use as sign legend buttons.

AS 1906.2-1981

Retroreflective materials and devices for road traffic control purposes, Part 2: Retroreflective devices (non-pavement application)