Standards ČSN - Czech national standards - Page 7063

Kvalita vod - Stanovení celkového vázaného dusíku (ST-TNb) ve vodě s použitím zkumavek - Část 1: Barevná reakce s dimethylfenolem.

Change published on 1.6.2026

Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction

Standard published on 1.6.2024

Kvalita vod - Stanovení celkového vázaného dusíku (ST-TNb) ve vodě s použitím zkumavek - Část 2: Barevná reakce s kyselinou chromotropovou.

Change published on 1.6.2026

Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction

WITHDRAWN published on 1.6.2024

Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction

WITHDRAWN published on 1.6.2024

Water quality - Determination of silver by atomic absorption spectrometric methods

Standard published on 1.7.1998

Water quality - Determination of aluminium - Spectrometric method using pyrocatechol violet

Standard published on 1.3.1997

Water quality - Determination of aluminium - Atomic absorption spectrometric methods

Standard published on 1.12.2000

Water quality - Determination of arsenic and antimony - Part 2: Method using hydride generation atomic absorption spectrometry (HG-AAS)

Standard published on 1.7.2015

Water Quality - Determination of arsenic - Atomic absorption spectrometric method (hybride technique)

WITHDRAWN published on 1.12.1997