Brominated polystyrene containing by weight > 58% but < 71% of bromine, in blocks of irregular shape, lumps, powders, granules, flakes and similar bulk forms
Copolymer solely of styrene with allyl alcohol, of an acetyl value of > 175, in primary form
Polymers of styrene, in primary forms (excl. polystyrene, styreneacrylonitrile copolymers "san", acrylonitrilebutadienestyrene "abs", copolymer solely of styrene with allyl alcohol, of an acetyl value of > 175 and brominated polystyrene, containing by weight > 58% but < 71% of bromine, in blocks of irregular shape, lumps, powders, granules, flakes and similar bulk forms)