Water quality - Determination of ammonium nitrogen by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:1997); German version EN ISO 11732:1997— 26 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 - 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 - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005); German version EN ISO 11732:2005— 25 стр.
German standard methods for the examination of water, waste water and sludge; cations (group E); determination of ammonium-nitrogen by flow analysis (E 23)— 18 стр.
Water quality - Evaluation of the elimination and biodegradability of organic compounds in an aqueous medium - Activated sludge simulation test (ISO 11733:1995); German version EN ISO 11733:1998— 26 стр.
Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005); German version EN ISO 11732:2005— 25 стр.
German standard methods for the examination of water, waste water and sludge; cations (group E); determination of ammonium-nitrogen by flow analysis (E 23)— 18 стр.
