EN 15560:2023

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

This document specifies a method for the determination of total nitrogen in nitrate-free calcium cyanamide.

Anorganische Düngemittel - Bestimmung von Gesamtstickstoff in nitratfreiem Kalkstickstoff

Dieses Dokument legt ein Verfahren zur Bestimmung von Gesamtstickstoff in nitratfreiem Kalkstickstoff fest.

Engrais inorganiques - Dosage de l'azote total dans la cyanamide calcique exempte de nitrate

Le présent document spécifie une méthode de détermination de l’azote total dans la cyanamide calcique exempte de nitrate.

Gnojila - Določevanje celotnega dušika v kalcijevem cianoamidu, ki ne vsebuje nitratov

General Information

• Status: Published
• Publication Date: 22-Aug-2023
• ICS: 65.080 - Fertilizers
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 7 - Chemical analysis
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 23-Aug-2023
• Due Date: 29-Jun-2023
• Completion Date: 23-Aug-2023
• Directive: 2019/1009 - Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003
• Mandate: M/564 - Fertilising products in support of Regulation (EU) 2019/1009
• Mandate: M/564 AMD 1 - amending Implementing Decision C(2020) 612 as regards certain harmonised standards and standardisation deliverables, deadlines for their adoption and the duration of the validity of the standardisation request
• Ref Project: kSIST FprEN 15560:2023 - Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

Relations

• Replaces: EN 15560:2009 - Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 15560:2021
01-december-2021
Gnojila - Določevanje celotnega dušika v kalcijevem cianoamidu, ki ne vsebuje
nitratov
Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
Düngemittel - Bestimmung des Gesamtstickstoffs in nitratfreiem Kalkstickstoff
Engrais - Détermination de l'azote total dans la cyanamide calcique exempte de nitrate
Ta slovenski standard je istoveten z: prEN 15560
ICS:
65.080 Gnojila Fertilizers
oSIST prEN 15560:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 15560:2021

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oSIST prEN 15560:2021


DRAFT
EUROPEAN STANDARD
prEN 15560
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2021
ICS 65.080 Will supersede EN 15560:2009
English Version

Fertilizers - Determination of total nitrogen in calcium
cyanamide nitrate free
Engrais - Détermination de l'azote total dans la Düngemittel - Bestimmung des Gesamtstickstoffs in
cyanamide calcique exempte de nitrate nitratfreiem Kalkstickstoff
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 260.

If this draft becomes a European Standard, 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.

This draft European Standard 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, 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, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15560:2021 E
worldwide for CEN national Members.

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oSIST prEN 15560:2021
prEN 15560:2021 (E)
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 . 5
Figure 1 — Distillation apparatus 1 . 6
Figure 2 — Distillation apparatus 2 . 7
Figure 3 — Distillation apparatus 3 . 8
Figure 4 — Distillation apparatus 4 . 9
7 Sampling and sample preparation . 10
8 Procedure. 10
8.1 Preparation of the solution . 10
8.2 Analysis of the solution . 10
Table 1 — Weighing, dilution and calculation variants a, b and c . 11
8.3 Blank . 11
8.4 Control test . 11
9 Calculation and expression of the result . 11
10 Test report . 12
Bibliography . 13

2

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oSIST prEN 15560:2021
prEN 15560:2021 (E)
European foreword
This document (prEN 15560:2021) has been prepared by Technical Committee CEN/TC 260 “Fertilizers
and liming materials”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15560:2009.
In comparison with the previous edition, the following technical modifications have been made:
— deletion of former tables and addition of a technically revised Table (8.2);
— rewording of the control test (8.4).
3

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oSIST prEN 15560:2021
prEN 15560:2021 (E)
1 Scope
This document specifies a method for the determination of total nitrogen in nitrate-free calcium
cyanamide.
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 and soil improvers - Vocabulary - Part 1: General terms
EN 12944-2, Fertilizers and liming materials and soil improvers - 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
Digestion in sulfuric acid with the aid of a catalyst. Distillation of the ammonia from an alkaline solution,
absorption in an excess of standard sulfuric acid solution and back-titration with standard sodium or
potassium hydroxide solution.
5 Reagents
Use only reagents of recognized analytical grade and distilled or demineralized water, free from carbon
dioxide and all nitrogenous compounds (grade 3 according to EN ISO 3696:1995).
5.1 Diluted sulfuric acid, mix one volume of sulfuric acid, mass concentration ρ = 1,84 g/ml, with
one volume of water.
5.2 Potassium sulphate, analytical grade.
5.3 Catalyst
Use 0,3 g to 0,4 g of copper(II)oxide or 0,95 g to 1,25 g of copper(II)sulfate pentahydrate for each
determination.
4

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prEN 15560:2021 (E)
5.4 Sodium hydroxide solution, 30 % mass concentration, of approximately ρ(NaOH) = 1,33 g/ml,
ammonia free.
5.5 Sulfuric acid, substance concentration c = 0,05 mol/l.
5.6 Sodium or potassium hydroxide solution, carbonate free, c = 0,1 mol/l.
5.7 Sulfuric acid, c = 0,1 mol/l.
5.8 Sodium or potassium hydroxide solution, carbonate free, c = 0,2 mol/l.
5.9 Sulfuric acid, c = 0,25 mol/l.
5.10 Sodium or potassium hydroxide solution, carbonate free, c = 0,5 mol/l.
5.11 Indicator solutions
5.11.1 Mixed indicator
Solution A: Dissolve 1 g of methyl red in 37 ml of sodium hydroxide solution c = 0,1 mol/l (5.6) and
make up to 1 l with water.
Solution B: Dissolve 1 g of methylene blue in water and make up to 1 l.
Mix one volume of solution A with two volumes of solution B.
This indic
...