DIN EN ISO 18412:2007 PDF

Scope: This International Standard specifies a method for the determination of chromium(VI) in drinking water in mass concentrations between 2 ug/1 and 50 ug/1. For the determination of higher concentrations, the sample is diluted prior to analysis. The method may also be applied to weakly polluted ground and surface water, provided the matrix does not contain interfering reducing agents. This method has not been verified for estuarine water and seawater, so the user is responsible for the validation of the method for these matrices. The photometric determination of chromium(VI) in waste water is carried out according to ISO 11083, Water quality— Determination of chromium(VI) — Spectrometric method using 1,5-diphenylcarbazide.

DIN EN ISO 18412:2007 Referenced Document

ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 5667-1 Water quality — Sampling — Part 1: Guidance on the design of sampling programmes and sampling techniques*， 2023-03-14 Update
ISO 5667-2 Water quality; sampling; part 2: guidance on sampling techniques
ISO 5667-3 Water quality*， 2024-02-01 Update
ISO 8466-1 Water quality — Calibration and evaluation of analytical methods — Part 1: Linear calibration function*， 2021-11-17 Update

2007 DIN EN ISO 18412:2007-02 Water quality - Determination of chromium(VI) - Photometric method for weakly contaminated water (ISO 18412:2005); German version EN ISO 18412:2006
2007 DIN EN ISO 18412:2007 Water quality - Determination of chromium(VI) - Photometric method for weakly contaminated water (ISO 18412:2005); English version of DIN EN ISO 18412:2007-02
0000 DIN EN ISO 18412:2006