This British Standard specifies requirements and test methods for rigid and flexible portable signs, barriers, self-supporting portable signs, "Stop/Go" and "Stop/Works" signs, school crossing patrol signs, flat traffic delineators, flap signs, pedestrian crossing and refuge beacons, internally illuminated posts, twin amber flashing light units and retroreflective self-righting bollards.All current amendments available at time of purchase are included with the purchase of this document.