Standards ČSN - Czech national standards - Page 7051

Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion

Standard published on 1.5.2025

Water quality - Determination of nitrogen - Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection

WITHDRAWN published on 1.2.1998

Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides

WITHDRAWN published on 1.5.2004

Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion

WITHDRAWN published on 1.7.2022

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

Standard published on 1.3.1995

Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection

Standard published on 1.8.2011

Water quality. Determination of nitrogen. Catalytic digestion after reduction with Devarda´s alloy

WITHDRAWN published on 1.2.1996

Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate

Standard published on 1.10.1999

Water quality. Determination of phenol index. 4-aminoantipyrine spectrometric methods after distillation

Standard published on 1.2.1995

Water quality. Determination of selected monovalent phenols. Part 1: Gas-chromatographic method after enrichment by extraction

Standard published on 1.2.1996