DIN EN ISO 23697-2:2025-08
Water quality - Determination of total bound nitrogen (ST-TN<(Index)b>) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23697-2:2023); German and English version prEN ISO 23697-2:2025 / Note: Date of issue 2025-07-11
| Fecha de anulación: |
2026-06-01
Anulada
|
|---|---|
| Idiomas disponibles: | Alemán, Inglés |
| Resumen: | This document specifies a method for the determination of total bound nitrogen (ST-TNb) in water of various origins: groundwater, surface water and wastewater, in a measuring range of concentration generally between 0,5 mg/l and 150 mg/l of ST-TNb 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)|Chromotropic acid|Course of test|Definitions|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: | |
|
Equivalencia Internacional |
Idéntica ISO 23697-2:2023 |
|
Reemplazo Normas |
Es reemplazada por DIN EN ISO 23697-2:2026-06 |
Normas citadas
Libros relacionados
Normas relacionadas
Colecciones temáticas relacionadas
