SIST EN 15477:2009
(Main)Fertilizers - Determination of the water-soluble potassium content
Fertilizers - Determination of the water-soluble potassium content
This European Standard specifies a method for the determination of water-soluble potassium, which is applicable to all potassium fertilizers listed in Annex I of the Regulation (EC) No 2003/2003 [3].
Düngemittel - Bestimmung von wasserlöslichem Kalium
Diese Europäische Norm legt ein Verfahren zur Bestimmung des wasserlöslichen Kaliums fest, das für alle im
Anhang I der Verordnung (EG) Nr. 2003/2003 [3] aufgeführten kaliumhaltigen Düngemittel anwendbar ist.
Engrais - Détermination de la teneur en potassium soluble dans l'eau
La présente Norme européenne spécifie une méthode de détermination de la teneur en potassium soluble
dans l'eau, qui s'applique à tous les engrais potassiques énumérés dans l'Annexe I du règlement (CE)
N° 2003/2003 [3].
Gnojila - Določevanje kalija, topnega v vodi
General Information
- Status
- Published
- Public Enquiry End Date
- 19-Oct-2008
- Publication Date
- 10-May-2009
- Technical Committee
- KAT - Soil quality
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 11-May-2009
- Due Date
- 16-Jul-2009
- Completion Date
- 11-May-2009
Relations
- Replaces
SIST-TS CEN/TS 15477:2006 - Fertilizers - Determination of the water-soluble potassium content - Effective Date
- 01-Jun-2009
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 01-Jun-2015
Overview
SIST EN 15477:2009 - Fertilizers: Determination of the Water-Soluble Potassium Content is a European standard developed by CEN (European Committee for Standardization). This standard outlines a reliable and repeatable analytical method for measuring the water-soluble potassium content in all potassium fertilizers recognized under Annex I of Regulation (EC) No 2003/2003. The test method is critical for ensuring fertilizer quality, compliance with regulatory frameworks, and accurate labeling for agricultural products marketed in the European Union.
Key Topics
- Scope & Applicability:
- Applies to all potassium fertilizers listed under Regulation (EC) No 2003/2003
- Standardizes the testing procedure for laboratories across EU member states
- Analytical Method:
- Involves dissolving potassium in water and removing interferences
- Potassium is precipitated in a slightly alkaline environment as potassium tetraphenylborate
- Precision:
- Details on repeatability and reproducibility based on inter-laboratory studies
- Test Reporting:
- Specifies the reporting requirements to ensure full traceability and transparency
Applications
The SIST EN 15477:2009 standard plays a vital role in the fertilizer industry and agricultural sectors:
- Quality Control: Provides manufacturers and laboratories with a consistent methodology for determining the water-soluble potassium content, essential for meeting quality specifications.
- Regulatory Compliance: Ensures fertilizers are tested in line with EU legal requirements, facilitating product approval and international trade.
- Research & Development: Useful for product formulation adjustments, ensuring the intended potassium content for crop nutrition.
- Market Transparency: Harmonizes potassium measurement methods across EU member states, supporting fair competition and reliable consumer information.
- Environmental Stewardship: Correct determination of potassium content supports precise fertilizer application, promoting sustainable agriculture and reducing environmental impact.
Related Standards
For the implementation and contextual understanding of SIST EN 15477:2009, several related standards and regulatory documents should be considered:
- EN 1482-1 & EN 1482-2: Fertilizers and liming materials - Sampling and sample preparation (Parts 1 & 2)
- EN 12944-1 & EN 12944-2: Fertilizers and liming materials - Vocabulary (General terms and terms relating to fertilizers)
- EN ISO 3696: Specification for water used in analytical laboratory methods
- ISO 5725-1: Accuracy (trueness and precision) of measurement methods and results
- Regulation (EC) No 2003/2003: EU regulation on fertilizers, specifically referencing methods for nutrient analysis
Practical Value
Implementing SIST EN 15477:2009 enables laboratories and fertilizer producers to:
- Use a harmonized procedure for potassium determination, ensuring consistency across jurisdictions and over time
- Demonstrate due diligence and compliance in regulatory processes
- Offer products that meet advertised nutrient claims, which is key for customer trust in agricultural supply chains
Keywords: SIST EN 15477:2009, water-soluble potassium, potassium fertilizers, fertilizer analysis, CEN standard, fertilizer quality control, EU Regulation 2003/2003, agricultural laboratory testing, nutrient content determination, potassium measurement standard.
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Frequently Asked Questions
SIST EN 15477:2009 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Fertilizers - Determination of the water-soluble potassium content". This standard covers: This European Standard specifies a method for the determination of water-soluble potassium, which is applicable to all potassium fertilizers listed in Annex I of the Regulation (EC) No 2003/2003 [3].
This European Standard specifies a method for the determination of water-soluble potassium, which is applicable to all potassium fertilizers listed in Annex I of the Regulation (EC) No 2003/2003 [3].
SIST EN 15477:2009 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.
SIST EN 15477:2009 has the following relationships with other standards: It is inter standard links to SIST-TS CEN/TS 15477:2006, SIST EN 12944-2:2002, SIST EN 12944-1:2002, SIST EN 1482-2:2025, SIST EN ISO 3696:1998, SIST-TS CEN/TS 17757:2023, oSIST prEN 15477:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 15477:2009 is associated with the following European legislation: Standardization Mandates: M/335. 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.
SIST EN 15477:2009 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Düngemittel - Bestimmung von wasserlöslichem KaliumEngrais - Détermination de la teneur en potassium soluble dans l'eauFertilizers - Determination of the water-soluble potassium content65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 15477:2009SIST EN 15477:2009en,fr,de01-junij-2009SIST EN 15477:2009SLOVENSKI
STANDARDSIST-TS CEN/TS 15477:20061DGRPHãþD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15477January 2009ICS 65.080Supersedes CEN/TS 15477:2006
English VersionFertilizers - Determination of the water-soluble potassiumcontentEngrais - Détermination de la teneur en potassium solubledans l'eauDüngemittel - Bestimmung von wasserlöslichem KaliumThis European Standard was approved by CEN on 30 November 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15477:2009: ESIST EN 15477:2009
Results of the inter-laboratory tests . 10 Bibliography . 11
EN ISO 3696:1995, Water for analytical laboratory use — Specification and test methods (ISO 3696:1987) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12944-1:1999 and EN 12944-2:1999 apply. 4 Principle The potassium in the sample to be analyzed is dissolved in water. After eliminating or fixing the substances that might interfere with the quantitative determination, the potassium is precipitated in a slightly alkaline medium in the form of potassium tetraphenylborate. 5 Reagents 5.1 General Use only reagents of recognized analytical grade and distilled or demineralized water (grade 3 according to EN ISO 3696:1995). 5.2 Formaldehyde, clear formaldehyde solution with a mass fraction of 25 % to 35 % formaldehyde. 5.3 Potassium chloride, p. a. 5.4 Sodium hydroxide solution, c = 10 mol/l. Care should be taken to ensure that only potassium free sodium hydroxide is used. 5.5 Indicator solution Dissolve 0,5 g of phenolphthalein in ethanol at 90 % and make the volume up to 100 ml. SIST EN 15477:2009
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