Commission Regulation (EEC) No 3499/86 of 17 November 1986 re-establishing the levying of customs duties on ethanolamine, diethanolamine, triethanolamine and their salts, falling within subheading 29.23 A I, ex II, originating in Brazil, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3599/85 apply