1.

The reference method of analysis for determining the concentration of the substances in question in discharges and in waters will be gas chromotography with electron capture detection after extraction by means of an appropriate solvent and purification. The accuracy (1) and precision (1) of the method must be ± 50 % at a concentration which represents twice the value of the limit of detection. The limit of detection (1) must be: in the case of discharges, one-tenth of the concentration required at the point of sampling; in the case of waters subject to a quality objective: for inland surface waters, one-tenth of the concentration indicated in the quality objective; for estuary waters and territorial sea waters, one-fifth of the concentration indicated in the quality objective; in the case of sediments, 1 mg/kg, dry weight; in the case of living organisms, 1 mg/kg, wet weight.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-05 · Text as adopted (Official Journal); later amendments are not incorporated in this text.