EN 17864:2023

SLOVENSKI STANDARD
01-junij-2024
Nadomešča:
SIST EN 15705:2010
Anorganska gnojila - Določanje dušika v IBDU (izobutilidendiurea) in CDU
(krotonilidendiurea)
Inorganic fertilizers - Determination of nitrogen content in IBDU (isobutylidenediurea) and
CDU (crotonylidenediurea)
Anorganische Düngemittel - Bestimmung des Stickstoffgehalts in IBDU
(Isobutylidendiharnstoff) und CDU (Crotonylidendiharnstoff)
Engrais inorganiques - Détermination de la teneur en azote dans l'IBDU (isobutylidène
diurée) et la CDU (crotonylidène diurée)
Ta slovenski standard je istoveten z: EN 17864:2023
ICS:
65.080 Gnojila Fertilizers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17864
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2023
EUROPÄISCHE NORM
ICS 65.080 Supersedes EN 15705:2010
English Version
Inorganic fertilizers - Determination of nitrogen content in
IBDU (isobutylidenediurea) and CDU
(crotonylidenediurea)
Engrais inorganiques - Détermination de la teneur en Anorganische Düngemittel - Bestimmung des
azote dans l'IBDU (isobutylidène diurée) et la CDU Stickstoffgehalts in IBDU (Isobutylidendiharnstoff) und
(crotonylidène diurée) CDU (Crotonylidendiharnstoff)
This European Standard was approved by CEN on 27 November 2023.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17864:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Reagents . 4
6 Apparatus and equipment . 4
7 Sampling and sample preparation . 5
8 Procedure . 5
8.1 General . 5
8.2 Calibration . 5
8.2.1 Stock solution IBDU, mass concentration ρ(IBDU) = 100 mg/l . 5
8.2.2 Stock solution CDU, ρ(CDU) = 100 mg/l . 5
8.2.3 Calibration solutions . 5
8.3 Preparation of the test solution . 6
8.4 Measurement . 6
9 Calculation and expression of the result . 6
10 Precision . 7
10.1 Inter-laboratory tests . 7
10.2 Repeatability . 7
10.3 Reproducibility . 7
11 Test report . 7
Annex A (informative) Results of the inter-laboratory tests . 8
Annex B (informative) Example chromatogram and calibration curves . 9
B.1 Example chromatogram . 9
B.2 Example calibration curves . 9
Annex C (informative) Example conditions for a suitable HPLC system . 11
Bibliography. 12

European foreword
This document (EN 17864:2023) has been prepared by Technical Committee CEN/TC 260 “Fertilizers
and liming materials”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2024, and conflicting national standards shall be
withdrawn at the latest by June 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document, together with EN 15705:2023, supersedes EN 15705:2010.
In comparison with EN 15705:2010, the following technical modifications have been made:
— EN 15705:2010 is split into two documents:
— Method A of EN 15705:2010 is given in this document;
— Method B of EN 15705:2010 is transferred to EN 15705:2023.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
1 Scope
This document specifies a method for the determination of nitrogen content in IBDU
(isobutylidenediurea) and CDU (crotonylidenediurea) using high-performance liquid chromatography
(HPLC).
The method is applicable to all fertilizers which do not contain interfering organic compounds.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1482-2, Fertilizers and liming materials — Sampling and sample preparation — Part 2: Sample
preparation
EN 12944-1, Fertilizers and liming materials — Vocabulary — Part 1: General terms
EN 12944-2, Fertilizers and liming materials — Vocabulary — Part 2: Terms relating to fertilizers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12944-1 and EN 12944-2
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
4 Principle
The sample is extracted with water and, after appropriate dilution, analyzed using a suitable HPLC
system.
5 Reagents
...