BS AU 47:1965

This standard BS AU 47:1965 Specification for advance warning triangle to indicate temporary obstructions is classified in these ICS categories:

• 43.040.20 Lighting, signalling and warning devices

This British Standard is concerned with triangle signs which may be placed on or beside the road to give advance warning of the presence of a temporary obstruction. The specification includes design and construction, colorimetric and photometric requirements, resistance to water and to oil, and a stability test. The materials for construction are not specified.