(22)To facilitate hazard identification for mixtures, manufacturers, importers and downstream users should base this identification on the data for the mixture itself, where available, except for mixtures with carcinogenic, germ cell mutagenic or reproductive toxic substances, or where the biodegradation or bioaccumulation properties in the hazard class hazardous to the aquatic environment are evaluated. In those cases, as the hazards of the mixture cannot be sufficiently assessed in a manner that is based on the mixture itself, the data for the individual substances of the mixture should normally be used as a basis for the hazard identification of the mixture.