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BS EN 1423:2012
Road marking materials. Drop on materials. Glass beads, antiskid aggregates and mixtures of the two (British Standard)
This European Standard specifies the requirements applicable to glass beads, anti-skid aggregates, and the mixture of the two, which are applied as drop-on materials on road markings products (i.e. paints, cold plastics and thermoplastics).
Glass beads and/or anti-skid aggregates, or their mixture, applied during the process of manufacturing other road marking products are not covered by this European Standard.
British Standards Institution [bsi]