DIN EN ISO 23697-1:2026-06
Water quality - Determination of total bound nitrogen (ST-TN<(Index)b>) in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23697-1:2023); German version EN ISO 23697-1:2025
| Fecha edición: |
2026-06-01
En Vigor
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| Idiomas disponibles: | Alemán |
| Resumen: | This document specifies a method for the determination of total bound nitrogen (ST-TN<(Index)b>) in water of various origins: groundwater, surface water, and wastewater, in a measuring range of concentration generally between 0,5 mg/l and 220 mg/l of (ST-TN<(Index)b>) using the small-scale sealed tube method. Different measuring ranges of small-scale sealed tube methods can be required. |
| Keywords: | Agricultural chemicals|Agriculture|Bathing water|Cells (glass)|Course of test|Definitions|Dimethylphenol method|Drinking water|Eutrophication|Fertilizers|Industrial|Natural|Nitrification|Nitrogen|Nitrogenous fertilizers|Pollution|Pollution of drinking water|Potable water|Sewage|Testing|Water purification|Water quality|Water testing |
| ICS: | 13.060.50 - Determinación de sustancias químicas en el agua |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN ISO 23697-1:2025 Idéntica ISO 23697-1:2023 |
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Reemplazo Normas |
Reemplaza a DIN EN ISO 23697-1:2025-08 |
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