The Directive also requires that the symbols, indications of danger, R and S phrases to be used for each substance shall be those shown in Annex I (Article 23(2)(c), (d) and (e)).
For substances belonging to more than one group of substances included in Annex I, the symbols, indications of danger, R and S phrases to be used for each substance shall be those shown in both the appropriate entries given in Annex I. In cases where two different classifications are given in the two entries for the same hazard, the classification reflecting the more severe hazard classification is used.