CEN/TS 16318:2012

Name: CEN/TS 16318:2012
Brand: CEN

Withdrawn

View Superseded by

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

Withdrawn date

11-03-2023

Published date

18-04-2012

Publisher

Comite Europeen de Normalisation

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
8 Test report
Bibliography

This Technical Specification specifies two methods for the determination of the content of soluble chromate in fertilisers. 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.NOTEIn case of reducing or oxidising fertiliser matrix, no valid Cr(VI) content can be reported.

Committee	CEN/TC 260
DocumentType	Technical Specification
PublisherName	Comite Europeen de Normalisation
Status	Withdrawn
SupersededBy	EN 16318:2013+A1:2016

Standards	Relationship
DIN SPEC 10788 : 2012	Identical
DIN CEN/TS 16318;DIN SPEC 10788:2012-06	Identical
XP CEN/TS 16318 : 2012 XP	Identical
UNI CEN/TS 16318 : 2012	Identical
PD CEN/TS 16318:2012	Identical
S.R. CEN/TS 16318:2012	Identical

ISO 5725-1:1994	Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
EN 12944-2:1999/AC:2000	FERTILIZERS AND LIMING MATERIALS AND SOIL IMPROVERS - VOCABULARY - PART 2: TERMS RELATING TO FERTILIZERS
EN 12944-1:1999/AC:2000	FERTILIZERS AND LIMING MATERIALS AND SOIL IMPROVERS - VOCABULARY - PART 1: GENERAL TERMS
EN 1482-2:2007	Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
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