In addition to 8 Polycyclic Aromatic Hydrocarbons (PAH) compounds restricted by Annex XVII, all PAH substances are restricted, please refer to CS-EPC-2001-01 'reference substances' for a complete list of PAH substances.All PAH substances are banned from “intentionally added”. For impurities, shall not contain benzo(a)pyrene above 20ppm per homogeneous material; sum of all PAHs shall not exceed 200ppm per homogeneous material.