STN EN ISO 23696-1
| Name: | STN EN ISO 23696-1 |
| Validity: | Valid |
| Number of pages: | 20 |
| Language: |
EN
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| Paper: | 14,10€ |
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| Slovak title | Kvalita vody. Stanovenie dusičnanov vo vode skúmavkovou metódou pre malé objemy vzoriek. Časť 1: Farebná reakcia s dimetylfenolom (ISO 23696-1: 2023) |
| English title | Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23696-1:2023) |
| Release Date: | 01. 05. 2026 |
| Date of withdrawal: | |
| ICS: | 13.060.50 |
| Sorting character/National clasification code | 75 7493 |
| Level of incorporation: | idt ISO 23696-1:2023, idt EN ISO 23696-1:2025 |
| Official Journal | 04/26 |
| Amendments | |
| Replaced by: | |
| Repleces: | |
| Note in Official Journal: | Rozpracovaná prekladom. |
| Subject of the standard: | This document specifies a method for the determination of nitrate as NO3-N in water of various origin such as natural water (including groundwater, surface water and bathing water), drinking water and wastewater, in a measuring range of concentration between 0,10 mg/l and 225 mg/l of N03-N using the small-scale sealed tube method. Different measuring ranges of small-scale sealed tube methods can be required. The measuring ranges can vary depending on the type of the small-scale sealed tube method of different manufacturers. It is up to the user to choose the small-scale sealed tube test with the appropriate application range or to adapt samples with concentrations exceeding the measuring range of a test by preliminary dilution. NOTE 1 The results of a sealed-tube test are most precise in the middle of the application range of the test. Manufacturers' small-scale sealed tube methods are based on dimethylphenol colour reaction depending on the typical operating procedure of the small-scale sealed tube ... |
| Preview: | Náhľad normy (PDF) |