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BOS 442-1:2011
P467.40
Retro-reflective and fluorescent warning signs for road vehicles Part 1: Triangles
Description
“This part of BOS 442 specifies requirements for two types of triangles that are retro-reflective and fluorescent and are intended to be carried in motor vehicles operating on public roads. NOTE 1 The triangles covered by this part of BOS 442 may be used to give advance warning to approaching traffic1 of a)a vehicle that is stationary, in the case of Type A triangles (see Figure 4(a)), and b)a vehicle that is slow moving, in the case of Type B triangles fixed to the rear of a vehicle (see Figure 4(b) andFDS 442-2). NOTE 2 Requirements that must be specified by the purchaser are listed in Annex A. NOTE 3 Methods for the determination of the coefficient of friction and the geometric roughness of a road surface are given in Annex B. NOTE 4 Suggested coatings for mild steel surfaces are given in Annex C. NOTE 5 Guidance on the verification of the quality of triangles produced to this is given in Annex D.”