Classification opinions
… 1. “Artificial marble”, rectangular sheets (thickness 1.27 cm or … cm, width 63.5 cm or 76.2 cm, length 307.3 cm or 368.3 cm), consisting, mainly, of poly(methyl metha-crylate) (33 % by weight) and aluminium hydroxide (66 % by weight). Adoption : 1982 …