1. | Resistance of the accessible rear face of mirror-backed retro-reflective devices, in the case of moulded plastics reflectors as Classes IA, IB, IIIA, IIIB, IVA and Advance warning triangle of type 1. | a0c0 |
1. | Resistance of the accessible rear face of mirror-backed retro-reflective devices, in the case of moulded plastics reflectors as Classes IA, IB, IIIA, IIIB, IVA and Advance warning triangle of type 1. | a0c0 |