Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction
Abstract
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 0,20 mg/l and 30 mg/l of NO3-N using the small-scale sealed tube method. Different measuring ranges of small-scale sealed tube methods can be required.
Begin
2025-05-22
WI
00230469
Planned document number
DIN EN ISO 23696-2
Project number
11905087
Responsible national committee
NA 119-09-02 AA - Organic compounds
Responsible european committee
Responsible international committee
ISO/TC 147/SC 2 - Physical, chemical and biochemical methods
