CEN/TS 17773:2022
(Main)Organic and organo-mineral fertilizers - Determination of the dry matter content
Organic and organo-mineral fertilizers - Determination of the dry matter content
This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009 [1]. However, the present method was not validated for blends.
This document specifies the procedure for the determination and calculation of the dry matter fraction of organic and organo-mineral fertilizers for which the results of the performed analysis are calculated to the dry matter basis.
Organische und organisch-mineralische Düngemittel - Bestimmung des Trockensubstanzgehalts
Dieses Dokument ist für Düngeprodukte anzuwenden, die den Kategorien PFC 1(A) und PFC 1(B) zugeordnet oder als Komponente der Kategorien PFC 1(A) und PFC 1(B) in PFC 7 der Verordnung (EU) 2019/1009 [1] eingestuft sind. Das vorliegende Verfahren wurde jedoch nicht für Mischungen validiert.
Dieses Dokument legt das Verfahren zur Bestimmung und Berechnung des Trockenmassenanteils von organischen und organisch-mineralischen Düngemitteln fest, für die die Ergebnisse der durchgeführten Analyse bezogen auf die Trockenmasse berechnet werden.
Engrais organiques et organo-minéraux - Détermination de la teneur en matière sèche
Le présent document est applicable aux fertilisants qui sont classés dans les catégories PFC 1(A) et PFC 1(B) ou comme composants de PFC 1(A) et de PFC 1(B) dans la catégorie PFC 7 du Règlement (UE) 2019/1009 [1]. Toutefois, la présente méthode n’a pas été validée pour les mélanges.
Le présent document spécifie le mode opératoire pour la détermination et le calcul de la fraction de matière sèche d’engrais organiques et organo-minéraux pour lesquels les résultats des analyses menées sont calculés sur la base de la matière sèche.
Organska in organsko-mineralna gnojila - Določevanje suhe snovi
Ta dokument določa metodo za določevanje suhe snovi v organskih in organsko-mineralnih gnojilih.
General Information
- Status
- Published
- Publication Date
- 05-Apr-2022
- Technical Committee
- CEN/TC 260 - Fertilizers and liming materials
- Drafting Committee
- CEN/TC 260/WG 8 - Organic and organo-mineral fertilizers
- Current Stage
- 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
- Start Date
- 03-Jun-2025
- Completion Date
- 23-Sep-2025
Overview
CEN/TS 17773:2022 defines a standardized, gravimetric procedure to determine the dry matter (dry residue) of organic and organo-mineral fertilizers. Applicable to products classified under PFC 1(A) and PFC 1(B) (and their component in PFC 7 under Regulation (EU) 2019/1009), the method converts analytical results to a dry-matter basis so parameters reported are comparable and legally defensible. Note: the method was not validated for blends.
The method is based on oven-drying at (105 ± 2) °C and is suitable for solid samples and samples that become solid during drying. Volatile compounds lost up to 105 °C are treated as water in this procedure.
Key Topics
- Principle: Dry samples to constant mass at 105 ± 2 °C and calculate the dry residue by mass difference.
- Sampling & preparation: Follow EN 1482 principles with adaptations for organic/organo-mineral fertilizers. Document sampling details in the test report.
- Two procedures:
- Procedure A - for general solid or liquid fertilizers (place sample directly in dish/crucible).
- Procedure B - for liquids prone to forming a crust; mix sample with inert sand or diatomaceous earth to prevent caking.
- Apparatus & reagents: Thermostatically controlled oven, desiccator with drying agent, analytical balance (readability 1 mg), evaporating dish/crucible and inert sand (if using Procedure B).
- Quality control: Duplicate analyses are recommended where homogeneity is uncertain; at least one duplicate per batch.
Procedure highlights and calculation
- Precondition dish/crucible in the oven, cool in desiccator and record empty mass (m_a).
- Weigh loaded dish (m_b), dry until residue appears dry (typically overnight), cool and weigh dried dish (m_c).
- Dryness is confirmed when a further 1 h drying changes mass by ≤ 0.5 % or 2 mg (whichever is greater). If mass remains unstable after three cycles, stop after at least 16 h and report results.
Calculation (mass fraction):
w_dr = (m_c − m_a) / (m_b − m_a) × f
where f = 100 for % or 1000 for g/kg.
Applications
- Conversion of analytical results (nutrients, contaminants) to a dry-matter basis for reporting and regulatory compliance.
- Routine laboratory quality control for organic and organo-mineral fertilizer manufacturing and distribution.
- Use in conformity assessment under Regulation (EU) 2019/1009 for PFC 1(A) and 1(B) products.
Practical notes: avoid samples that may release flammable or explosive gases during drying; when using an inert matrix, verify it does not decompose or retain moisture that biases results. Other validated drying techniques (e.g., infrared) are permitted if demonstrated to give comparable results and recorded in the test report.
Related Standards
- EN 1482 (sampling and sample preparation guidance)
- EN 14787 (moisture content guidelines)
- EN 15934, ISO 11465, EN 12048 (comparable gravimetric methods and calculation rules)
Keywords: dry matter, dry residue, organic fertilizers, organo-mineral fertilizers, oven drying, gravimetric method, PFC 1(A), PFC 1(B), Regulation (EU) 2019/1009.
Frequently Asked Questions
CEN/TS 17773:2022 is a technical specification published by the European Committee for Standardization (CEN). Its full title is "Organic and organo-mineral fertilizers - Determination of the dry matter content". This standard covers: This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009 [1]. However, the present method was not validated for blends. This document specifies the procedure for the determination and calculation of the dry matter fraction of organic and organo-mineral fertilizers for which the results of the performed analysis are calculated to the dry matter basis.
This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009 [1]. However, the present method was not validated for blends. This document specifies the procedure for the determination and calculation of the dry matter fraction of organic and organo-mineral fertilizers for which the results of the performed analysis are calculated to the dry matter basis.
CEN/TS 17773:2022 is classified under the following ICS (International Classification for Standards) categories: 65.080 - Fertilizers. The ICS classification helps identify the subject area and facilitates finding related standards.
CEN/TS 17773:2022 is associated with the following European legislation: EU Directives/Regulations: 2019/1009; Standardization Mandates: M/564. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase CEN/TS 17773:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2023
Organska in organsko-mineralna gnojila - Določevanje suhe snovi
Organic and organo-mineral fertilizers - Determination of the dry matter content
Organische und organisch-mineralische Düngemittel - Bestimmung des
Trockensubstanzgehalts
Engrais organiques et organo-minéraux - Détermination de la teneur en matière sèche
Ta slovenski standard je istoveten z: CEN/TS 17773:2022
ICS:
65.080 Gnojila Fertilizers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN/TS 17773
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
April 2022
TECHNISCHE SPEZIFIKATION
ICS 65.080
English Version
Organic and organo-mineral fertilizers - Determination of
the dry matter content
Engrais organiques et organo-minéraux - Organische und organisch-mineralische Düngemittel -
Détermination de la teneur en matière sèche Bestimmung des Trockenrückstands
This Technical Specification (CEN/TS) was approved by CEN on 13 February 2022 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.
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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17773:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Sampling and sample preparation . 5
6 Interferences . 5
7 Reagents . 6
8 Apparatus . 6
9 Procedure . 6
9.1 Procedure A . 6
9.2 Procedure B . 6
9.3 Procedure A and B . 7
10 Quality control . 7
11 Calculation and expression of results . 7
12 Test report . 8
Bibliography . 9
European foreword
This document (CEN/TS 17773:2022) has been prepared by Technical Committee CEN/TC 260
“Fertilizers and liming materials”, the secretariat of which is held by DIN.
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 has been prepared under a standardisation request given to CEN by the European
Commission and the European Free Trade Association.
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 announce this Technical Specification: 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 the United
Kingdom.
Introduction
In case of the analysis of organic and organo-mineral fertilizers, water is usually not considered a part of
the sample and results are generally related to dry matter, which can be calculated by determining the
dry residue (dry matter content).
1 Scope
This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the
PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009 [1]. However, the present
method was not validated for blends.
This document specifies the procedure for the determination and calculation of the dry matter fraction
of organic and organo-mineral fertilizers for which the results of the performed analysis are calculated
to the dry matter basis.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
3.1
dry residue
remaining mass fraction of a sa
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...