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prSRPS EN ISO 5663:2025

Water quality — Determination of Kjeldahl nitrogen — Method after mineralization with selenium

General information

10.99     Mar 15, 2025

ISS

H147

European Norm

English  

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.

Life cycle

PREVIOUSLY

PUBLISHED
SRPS EN 25663:2009

NOW

PROJECT
prSRPS EN ISO 5663:2025
10.99 New project approved
Mar 15, 2025

Related project

Adopted from prEN ISO 5663 rev IDENTICAL

Adopted from ISO/AWI 5663 IDENTICAL