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7Directive 2002/61/EC of the European Parliament and of the Council of 19 July 2002 amending for the mineteenth time Council Directive 76/769/EEC relating to restrictions on the marketing and use of certain dangerous substances and preparations (azo-colourants) [ S].
8Kuropka, Gryta, Mayer, et al. Forbidden Azo Dyes. Detection of Certain Azo Dyes Based on 4-Aminoazobenzene [ J ]. GIT Labor- Fachzeitschrift, 2005, 49 (7): 59-600.
