Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996); German version EN ISO 13395:1996— 28 стр.
Water quality - Sampling - Part 1: Guidance on the design of sampling programmes and sampling techniques (ISO 5667-1:2006); German version EN ISO 5667-1:2006— 40 стр.
Water quality - Sampling - Part 3: Guidance on the preservation and handling of water samples (ISO 5667-3:2003); German version EN ISO 5667-3:2003, Corrigenda to DIN EN ISO 5667-3:2004-05— 2 стр.
Water quality - Determination of selected parameters by discrete analysis systems - Part 1: Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection (ISO 15923-1:2013)— 32 стр.
