BS 3143-4 1985 Edition, February 28, 1985
Road Danger Lamps Part 4: High Intensity Battery Operated Beacons
Includes all amendments and changes through Reaffirmation Notice , November 2006
Additional Comments: W/D S/S BY BS EN 12352
Published By:British Standards Institution (BSI)
Specifies the construction and performance for high intensity battery operated beacons.