Division A DISCHARGE OF AQUEOUS EFFLUENT

United Kingdom

The reference method of analysis to determine total suspended matter (filterable matter from the non precipitated (SIC! non-precipitated) sample) as expressed in mg/l shall be filtering through a 0,45 μm filter membrane, drying at 105 °C and weighing^f1.

Samples must be taken in such a way as to be representative of the discharge over a 24-hour period.

This determination must be conducted to a precision^f2 of ± 5 % and an accuracy^f3 of ± 10 %.

Annotations

Footnotes

f1: See Annex III to Directive 82/833/EEC (OJ No L 378, 31. 12. 1982, p. 1).
f2: These items are defined in Article 2 of Directive 79/869/EEC (OJ No L 271, 29. 10. 1979, p. 44) as amended by Directive 81/855/EEC (OJ No L 319, 7. 11. 1981, p. 16).
f3: These items are defined in Article 2 of Directive 79/869/EEC (OJ No L 271, 29. 10. 1979, p. 44) as amended by Directive 81/855/EEC (OJ No L 319, 7. 11. 1981, p. 16).