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prSRPS EN ISO 18724:2023

Water quality -- Determination of dissolved chromium(VI) in water -- Photometric method

General information

10.99     Apr 26, 2023



European Norm




This document specifies a method for the photometric determination of dissolved chromium(VI) using
manual, e.g., hand photometry, or automated static, e.g., discrete analyser system, or automated
dynamic techniques, e.g., flow injection analysis (FIA), continuous flow analysis (CFA), or ion
chromatography with post-column derivatization (IC-PCR). Typical areas of application for the static
techniques as well as FIA and CFA are samples with Cr(VI) concentrations 2 �g/l in raw water,
drinking water, surface water, aqueous eluates, cooling water and treated wastewater, provided that
the Matrix does not contain any reducing substances. When using cuvettes with large optical path
lengths, e.g. >100 mm, the range of application can be extended to concentrations 2 �g/l Cr(VI). When
using coupled techniques (e.g. IC-PCR), Cr(VI) concentrations 0,02 �g/l can be determined.
The NP is based on DIN 38405-52:2020-11.

Related directives

Directives related to this standard.


Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy (substitutes Directive Reference 01/991 - Common Position on WFD)

Life cycle


prSRPS EN ISO 18724:2023
10.99 New project approved
Apr 26, 2023

Related project

Adopted from prEN ISO 18724 IDENTICAL

Adopted from ISO/CD 18724 IDENTICAL