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EN 25663:1993

Water quality - Determination of Kjeldahl nitrogen - Method after mineralization with selenium (ISO 5663:1984)

Mar 15, 2000

General information

90.93 Standard confirmed   May 21, 2008

CEN

CEN/TC 230 Water analysis

European Norm

13.060.30   Sewage water

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Scope

Specifies a procedure for the determination of trivalent negative nitrogen. Organic nitrogen in the form of azide, azine, azo, hydrazone, nitrite, nitro, nitroso, oxime or semicarbazone is not determined quantitatively. The procedure is applicable to the analysis of raw, potable and waste waters.

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PUBLISHED
EN 25663:1993
90.93 Standard confirmed
May 21, 2008

Relations

Adopted from ISO 5663:1984 IDENTICAL