ANNEX IV
Chemical fertilizer Nitrogen compounds shall be measured using the method described in Commission Directive 77/535/EEC of 22 June 1977 on the approximation of the laws of the Member States relating to methods of sampling and analysis for fertilizers ( 9 ), as amended by Directive 89/519/EEC ( 10 ). Freshwaters, coastal waters and marine waters Nitrate concentration shall be measured in accordance with Article 4a (3) of Council Decision 77/795/EEC of 12 December 1977 establishing a common procedure for the exchange of information on the quality of surface fresh water in the Community ( 11 ), as amended by Decision 86/574/EEC ( 12 ).
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Source: EUR-Lex CELLAR · retrieved 2026-08-09 · Text as consolidated on 2026-03-02; changes after this date are not shown.