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EN 16318:2013+A1:2016

Current

Current

The latest, up-to-date edition.

Fertilizers and liming materials - Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)

Published date

24-02-2016

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European foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling and sample preparation
5 Method A: Determination by water extraction and
  spectrophotometric detection
6 Method B: Determination by alkaline digestion and
  ion chromatography with spectrophotometric detection
7 Precision - Inter-laboratory tests
8 Test report
Annex A (informative) - Results of the inter-laboratory
        test performed by VDLUFA on method A
Annex B (informative) - Results of a validation study
        on spiked water samples
Bibliography

This European Standard specifies two methods for the determination of the content of soluble chromate in fertilizers and liming materials.Method A specifies the determination of chromate after extraction with water by photometry. This method can be used to determine Cr(VI)-mass fractions in solids higher than 1 mg/kg.Method B specifies the determination of chromate by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.NOTE 1In case of reducing or oxidizing fertilizer matrix, no valid Cr(VI) content can be reported.NOTE 2The term fertilizer is used throughout the body of this European Standard and includes liming materials unless otherwise indicated.

Committee
CEN/TC 260
DevelopmentNote
Supersedes PREN 16318 & CEN/TS 16318. (10/2013) 2013 Edition Re-Issued in February 2016 & incorporates AMD 1 2016. (03/2016)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
EN 1482-2:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
EN 12944-3:2001 Fertilizers and liming materials - Vocabulary - Part 3: Terms relating to liming materials
EN 15192:2006 Characterisation of waste and soil - Determination of Chromium(VI) in solid material by alkaline digestion and ion chromatography with spectrophotometric detection
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
EN 1482-1:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling

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