EN 16318:2013/prA1

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

EN 16318:2013 will be amended taking into account liming materials in the scope of the method. Clause 7 Precision and Annex A Results of the inter-laboratory test will be amended by addition of the precision data received from the inter-laboratory test performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read: fertilizers and liming materials.

Düngemittel und Kalkdünger - Bestimmung von Chrom (VI) mit Photometrie (Verfahren A) und mit Ionenchromatographie mit spektrometrischer Detektion (Verfahren B)

Engrais et amendements minéraux basiques - Dosage du chrome (VI) par spectrophotométrie (méthode A) et chromatographie ionique avec détection spectrophotométrique (méthode B)

Gnojila in sredstva za apnjenje - Določevanje kroma (VI) s fotometrijo (metoda A) in z ionsko kromatografijo s spektrofotometrijsko detekcijo (metoda B) - Dopolnilo A1

General Information

• Status: Not Published
• ICS: 65.080 - Fertilizers
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 3 - Liming materials
• Current Stage: 4097 - End of interruption of work - split/merged
• Start Date: 24-Nov-2015
• Completion Date: 14-Apr-2025
• Mandate: M/418 - Standardization mandate M/335 assigned to CEN concerning the modernisation of the methods of analysis of fertilizers
• Ref Project: SIST EN 16318:2013/oprA1:2015 - Fertilizers and liming materials - Determination of chromium (VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)

Relations

• Merged Into: EN 16318:2013+A1:2016 - Fertilizers and liming materials - Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)
• Effective Date: 09-Dec-2015
• Amends: EN 16318:2013 - Fertilizers - Determination of trace elements - Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)
• Effective Date: 18-Sep-2013

Overview

EN 16318:2013/prA1 (CEN) specifies analytical methods for the determination of chromium (VI) / Cr(VI) in fertilizers and liming materials. The amendment (prA1) extends the original scope to explicitly include liming materials, updates precision data from inter‑laboratory tests (including 2013 tests on liming materials), and adds a health warning about the genotoxic and potentially carcinogenic nature of Cr(VI). The standard defines two validated approaches: method A - photometry, and method B - ion chromatography with spectrophotometric detection.

Key topics and requirements

• Scope: Measurement of the content of soluble chromate (Cr(VI)) in fertilizers and liming materials; the term “fertilizer” in the document includes liming materials unless otherwise stated.
• Analytical methods:
  • Method A: Photometric determination of Cr(VI).
  • Method B: Ion chromatography with spectrophotometric detection for Cr(VI).
• Precision and validation:
  • Inter‑laboratory test results and statistical precision (repeatability and reproducibility) are documented in Annex A, calculated per ISO 5725‑1 and ISO 5725‑2.
  • Additional precision data from 2013 tests on liming materials have been incorporated.
• Annex B updates: Calibration and recovery data for spiked water samples are provided (table replacement in the amendment).
• Safety requirement: WARNING - avoid skin contact, ingestion or inhalation of Cr(VI) compounds due to genotoxic and carcinogenic risks.
• Referenced standards: EN 12944 series (vocabulary/terms relating to liming materials) and ISO 5725 for precision assessment.

Applications and users

• Who uses it:
  • Accredited testing laboratories performing routine or regulatory analyses of fertilizers and liming materials.
  • Manufacturers and quality-control teams in the fertilizer and liming materials industry.
  • National regulatory bodies, compliance auditors, and environmental monitoring agencies.
  • Research groups developing or validating analytical procedures for Cr(VI) in agrochemical matrices.
• Practical applications:
  • Compliance testing to demonstrate conformity with limits for Cr(VI) in products.
  • Quality assurance and batch release testing for fertilizers and liming amendments.
  • Risk assessment and environmental monitoring where Cr(VI) contamination is a concern.
  • Method validation and inter‑laboratory comparison exercises.

Related standards

• EN 12944-1:1999, EN 12944-2:1999, EN 12944-3:2001 (terms relating to liming materials)
• ISO 5725-1 and ISO 5725-2 (precision of measurement methods and results)

This standard is essential for laboratories and manufacturers needing robust, CEN‑endorsed procedures for accurate, traceable determination of Cr(VI) in fertilizers and liming materials using photometry or ion chromatography.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2015
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Fertilizers and liming materials - Determination of chromium (VI) by photometry (method
A) and by ion chromatography with spectrophotometric detection (method B)
Düngemittel und Kalkdünger - Bestimmung von Chrom (VI) mit Photometrie (Verfahren
A) und mit Ionenchromatographie mit spektrometrischer Detektion (Verfahren B)
Engrais et amendements minéraux basiques - Dosage du chrome (VI) par
spectrophotométrie (méthode A) et chromatographie ionique avec détection
spectrophotométrique (méthode B)
Ta slovenski standard je istoveten z: EN 16318:2013/prA1
ICS:
65.080 Gnojila Fertilizers
71.040.50 Fizikalnokemijske analitske Physicochemical methods of
metode analysis
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
EN 16318:2013
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
April 2015
ICS 65.080
English Version
Fertilizers and liming materials - Determination of chromium (VI)
by photometry (method A) and by ion chromatography with
spectrophotometric detection (method B)
Engrais et amendements minéraux basiques - Dosage du Düngemittel und Kalkdünger - Bestimmung von Chrom (VI)
chrome (VI) par spectrophotométrie (méthode A) et mit Photometrie (Verfahren A) und mit
chromatographie ionique avec détection Ionenchromatographie mit spektrometrischer Detektion
spectrophotométrique (méthode B) (Verfahren B)
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 260.

This draft amendment A1, if approved, will modify the European Standard EN 16318:2013. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other language made
by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has
the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16318:2013/prA1:2015 E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Modification of the Foreword .4
2 Modification to the Title .4
3 Modifications to Clause 1, Scope .
...