This specification specifies the standard requirements of o-Xylene 980, including purity, non-aromatic hydrocarbon content, p-Xylene and m-Xylene content, C9 and heavier aromatics, cumene, bromine index, etc. It also requires o-Xylene 980 to be a transparent liquid, free of Sediment and haze, and meet the standards of platinum and cobalt grade Color and distillation range. The specification follows the principles of international standards and is suitable for industrial quality control and international trade.