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ČSN is a protected designation of Czech national technical standards.
Kvalita vod - Stanovení chemické spotřeby kyslíku (CHSKCr) - Metoda ve zkumavkách.
Standard published on 1.2.2013
Selected format:Water quality - Determination of the chemical oxygen demand
Standard published on 1.12.2008
Selected format:Jakost vod - Stanovení chemické spotřeby kyslíku.
Change published on 1.3.2010
Selected format:Jakost vod - Stanovení chemické spotřeby kyslíku.
Correction published on 1.6.2010
Selected format: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
Selected format: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WITHDRAWN published on 1.2.1998
Selected format:Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
WITHDRAWN published on 1.5.2004
Selected format: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WITHDRAWN published on 1.7.2022
Selected format:Water quality. Determination of Kjeldahl nitrogen. Method after mineralization with selenium (ISO 5663:1984)
Standard published on 1.3.1995
Selected format: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
Selected format:Latest update: 2026-06-30 (Number of items: 2 285 193)
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