Fertilizers - Extraction of water soluble sulfur where the sulfur is in various forms

This document specifies a method for the extraction of water-soluble sulfur contained in fertilizers in various forms.
The method is applicable to EC-fertilizers for which a declaration of the water-soluble sulfur trioxide is provided for.

Düngemittel - Extraktion von wasserlöslichem Schwefel, der in verschiedener Form vorliegen kann

Das vorliegende Dokument legt ein Verfahren für die Extraktion von wasserlöslichem Schwefel fest, der in verschiedener Form in Düngemitteln enthalten ist.
Das Verfahren gilt für EG Düngemittel, für die eine Deklaration des wasserlöslichen Schwefeltrioxids vorge-schrieben ist.

Engrais - Extraction du soufre soluble dans l'eau, lorsque le soufre est présent sous différentes formes

Le présent document fixe une méthode d’extraction du soufre soluble dans l’eau lorsque celui-ci est présent dans l’engrais sous différentes formes.
Cette méthode s’applique aux engrais CE pour lesquels est prévue une déclaration de l’anhydride sulfurique soluble dans l’eau.

Gnojila - Ekstrakcija v vodi topnega žvepla v različnih oblikah

Ta dokument opredeljuje metodo ekstrakcije v vodi topnega žvepla, vsebovanega v gnojilih v različnih oblikah.
Ta metoda velja za gnojila ES, za katera je predpisana deklaracija o žveplovem trioksidu, topnem v vodi.

General Information

Status
Published
Public Enquiry End Date
30-Jun-2011
Publication Date
17-Oct-2011
Technical Committee
KAT - Soil quality
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
17-Oct-2011
Due Date
22-Dec-2011
Completion Date
18-Oct-2011

Relations

Effective Date
01-Nov-2011

Overview

SIST EN 15926:2011 is a European Standard developed by CEN that specifies a reliable and standardized method for the extraction of water-soluble sulfur from fertilizers where sulfur exists in multiple forms. This standard ensures consistency and accuracy in measuring the water-soluble sulfur trioxide content in EC-fertilizers, which is essential for quality control, regulatory compliance, and accurate fertilizer labeling. The method outlined is particularly relevant for manufacturers, laboratories, and regulatory bodies involved in fertilizer analysis.

Key Topics

  • Scope and Applicability
    SIST EN 15926:2011 applies to EC-fertilizers with declared water-soluble sulfur trioxide content. It focuses on extracting sulfur that is present in various chemical forms, ensuring comprehensive analysis.

  • Extraction Principle
    The method involves dissolving sulfur from a fertilizer sample in cold water, followed by oxidation to sulfate using hydrogen peroxide in an alkaline medium. This process enables accurate quantification of water-soluble sulfur content.

  • Sampling and Sample Preparation
    Although sampling is not detailed in this standard, EN 1482-1 and EN 1482-2 are referenced for proper sampling and sample preparation to achieve representative and homogeneous laboratory samples.

  • Reagents and Apparatus
    The method requires analytical-grade reagents such as diluted hydrochloric acid, sodium hydroxide, and hydrogen peroxide solutions. Essential apparatus includes a graduated flask, rotary shaker, and an electric hot plate with temperature control.

  • Step-by-Step Procedure
    A precise weighing of the fertilizer sample is followed by water extraction with shaking, resting, and filtering. The extract undergoes oxidation with hydrogen peroxide and sodium hydroxide, then acidification before sulfate content determination following EN 15749.

  • Test Reporting Requirements
    The test report must document the method reference, sample identification, sampling data, extraction completion date, and details of any procedural deviations or incidents influencing the results.

Applications

  • Quality Control in Fertilizer Production
    Manufacturers use SIST EN 15926:2011 to verify the water-soluble sulfur content, ensuring products meet declared specifications and regulatory standards.

  • Regulatory Compliance
    Compliance with EU fertilizer regulations requires accurate measurement of sulfur compounds. This method provides standardized testing aligned with EC requirements.

  • Agricultural Soil Fertility Management
    Accurate sulfur content analysis helps agronomists and farmers optimize fertilizer application for improved crop yield and soil health.

  • Laboratory Analysis and Certification
    Testing laboratories rely on this standard to offer validated and reproducible results for fertilizer certification and quality assurance.

Related Standards

  • EN 1482-1 & EN 1482-2 – Sampling and sample preparation for fertilizers and liming materials
  • EN 12944-1 & EN 12944-2 – Vocabulary and terminology related to fertilizers
  • EN 15749 – Determination methods for sulfate content in fertilizers
  • Regulation (EC) No 2003/2003 – EU regulation regarding fertilizer standards and composition

By integrating the SIST EN 15926:2011 method into testing protocols, stakeholders can ensure precise, consistent, and regulatory-compliant analysis of water-soluble sulfur in fertilizers, promoting sustainable agricultural practices and market transparency.

Frequently Asked Questions

SIST EN 15926:2011 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Fertilizers - Extraction of water soluble sulfur where the sulfur is in various forms". This standard covers: This document specifies a method for the extraction of water-soluble sulfur contained in fertilizers in various forms. The method is applicable to EC-fertilizers for which a declaration of the water-soluble sulfur trioxide is provided for.

This document specifies a method for the extraction of water-soluble sulfur contained in fertilizers in various forms. The method is applicable to EC-fertilizers for which a declaration of the water-soluble sulfur trioxide is provided for.

SIST EN 15926:2011 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 15926:2011 has the following relationships with other standards: It is inter standard links to SIST-TS CEN/TS 15926:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 15926:2011 is associated with the following European legislation: EU Directives/Regulations: 2003/2003; 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.

You can purchase SIST EN 15926:2011 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 SIST standards.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Düngemittel - Extraktion von wasserlöslichem Schwefel, der in verschiedener Form vorliegen kannEngrais - Extraction du soufre soluble dans l'eau, lorsque le soufre est présent sous différentes formesFertilizers - Extraction of water soluble sulfur where the sulfur is in various forms65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 15926:2011SIST EN 15926:2011en,fr,de01-november-2011SIST EN 15926:2011SLOVENSKI
STANDARDSIST-TS CEN/TS 15926:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15926
September 2011 ICS 65.080 Supersedes CEN/TS 15926:2009English Version
Fertilizers - Extraction of water soluble sulfur where the sulfur is in various forms
Engrais - Extraction du soufre soluble dans l'eau, lorsque le soufre est présent sous différentes formes
Düngemittel - Extraktion von wasserlöslichem Schwefel, der in verschiedener Form vorliegen kann This European Standard was approved by CEN on 18 August 2011.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15926:2011: ESIST EN 15926:2011
...

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