EN 16032:2011
(Main)Fertilizers - Extraction and determination of elemental sulfur
Fertilizers - Extraction and determination of elemental sulfur
This European Standard specifies a method for extraction and determination of the elemental sulfur contained in fertilizers.
The method is applicable to EC fertilizers for which a declaration of the total sulfur in elemental form is provided for in Regulation (EC) Nr 2003/2003, Annex I [1].
Düngemittel - Extraktion und Bestimmung von elementarem Schwefel
Das vorliegende Dokument legt ein Verfahren zur Extraktion und Bestimmung des Schwefels fest, der in Düngemitteln in elementarer Form vorliegt.
Das Verfahren gilt für EG-Düngemittel, für die die Verordnung (EG) 2003/2003, Anhang I [1] die Angabe des in elementarer Form vorliegenden Gesamtschwefels vorschreibt.
Engrais - Extraction et dosage du soufre élémentaire
La présente norme européenne spécifie une méthode d’extraction et de dosage du soufre élémentaire contenu dans les engrais.
Cette méthode s’applique aux engrais CE pour lesquels l’Annexe I du Règlement (CE) N° 2003/2003 [1] prévoit la déclaration du soufre total sous forme élémentaire.
Gnojila - Ekstrakcija in določevanje elementarnega žvepla
Ta evropski standard določa metodo za ekstrakcijo in določevanje elementarnega žvepla v gnojilih. Metoda se uporablja za gnojila ES, za katera je v Prilogi I Uredbe (ES) št. 2003/2003 navedena deklaracija celotnega žvepla v elementarni obliki.
General Information
- Status
- Published
- Publication Date
- 29-Nov-2011
- Withdrawal Date
- 30-May-2012
- Technical Committee
- CEN/TC 260 - Fertilizers and liming materials
- Drafting Committee
- CEN/TC 260/WG 7 - Chemical analysis
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 20-Jun-2023
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 07-Dec-2011
Overview - EN 16032:2011 (Fertilizers: elemental sulfur)
EN 16032:2011 is a CEN European Standard that specifies a laboratory method for the extraction and determination of elemental sulfur in fertilizers. The procedure is intended for EC fertilizers where a declaration of total sulfur in elemental form is required under Regulation (EC) No 2003/2003, Annex I. The standard describes sample preparation, extraction using carbon disulfide (CS2), gravimetric determination and evaluation of extract purity.
Key topics and technical requirements
- Scope and applicability: Applies to fertilizers covered by Regulation (EC) No 2003/2003 when elemental sulfur content must be declared.
- Principle: Remove water‑soluble compounds, extract elemental sulfur with carbon disulfide (CS2), and determine sulfur gravimetrically after isolation.
- Safety: Strong warning about CS2 hazards - storage, personal protective equipment, fire/explosion prevention, occupational hygiene and waste disposal.
- Sampling and preparation: Sampling is outside the method but EN 1482 series is referenced for sampling and sample preparation; grinding of laboratory sample is recommended for homogeneity.
- Apparatus & reagents:
- Carbon disulfide (CS2)
- Soxhlet apparatus with thimble, 100 ml extraction flask, glass beads
- Vacuum rotary evaporator, fan‑assisted oven (90 ± 2 °C), hot plate (≤ 220 °C), porcelain Petri dishes
- Procedure highlights:
- Test portion typically 5–10 g placed in Soxhlet thimble.
- Wash with hot water to remove soluble compounds, dry at ~90 °C.
- Extract with ~50 ml CS2 for about 6 hours.
- Evaporate and dry extract to constant mass; determine purity by sublimation on hot plate (sublimation step ~3–4 h).
- Calculations & reporting:
- Equations given to calculate impure sulfur fraction, sulfur purity and final mass fraction of pure elemental sulfur.
- Test report must include sample identification, method reference (EN 16032), results, sampling/analysis dates, repeatability information and any relevant operating details or incidents.
Practical applications and users
- Laboratories performing quality control and compliance testing for fertilizer elemental sulfur content.
- Fertilizer manufacturers and formulators validating product composition and labeling.
- Regulatory bodies and notified laboratories verifying compliance with EC fertilizer regulations.
- Research institutions studying sulfur forms in soil amendments and slow‑release sulfur fertilizers.
Related standards and references
- EN 1482-1 / EN 1482-2 - Sampling and sample preparation for fertilizers and liming materials
- EN 12944-1 / EN 12944-2 - Vocabulary for fertilizers and soil improvers
- Regulation (EC) No 2003/2003 - Fertiliser regulation (Annex I references elemental sulfur declaration)
Keywords: EN 16032:2011, elemental sulfur, fertilizers, extraction, carbon disulfide, Soxhlet extraction, gravimetric determination, Regulation (EC) No 2003/2003.
Frequently Asked Questions
EN 16032:2011 is a standard published by the European Committee for Standardization (CEN). Its full title is "Fertilizers - Extraction and determination of elemental sulfur". This standard covers: This European Standard specifies a method for extraction and determination of the elemental sulfur contained in fertilizers. The method is applicable to EC fertilizers for which a declaration of the total sulfur in elemental form is provided for in Regulation (EC) Nr 2003/2003, Annex I [1].
This European Standard specifies a method for extraction and determination of the elemental sulfur contained in fertilizers. The method is applicable to EC fertilizers for which a declaration of the total sulfur in elemental form is provided for in Regulation (EC) Nr 2003/2003, Annex I [1].
EN 16032:2011 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.
EN 16032:2011 has the following relationships with other standards: It is inter standard links to CEN/TS 16032:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 16032:2011 is associated with the following European legislation: EU Directives/Regulations: 2003/2003, 2019/1009; 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.
EN 16032:2011 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 - Extraktion und Bestimmung von elementarem SchwefelEngrais - Extraction et dosage du soufre élémentaireFertilizers - Extraction and determination of elemental sulfur65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 16032:2011SIST EN 16032:2012en,fr,de01-marec-2012SIST EN 16032:2012SLOVENSKI
STANDARDSIST-TS CEN/TS 16032:20101DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16032
November 2011 ICS 65.080 Supersedes CEN/TS 16032:2010English Version
Fertilizers - Extraction and determination of elemental sulfur
Engrais - Extraction et dosage du soufre élémentaire
Düngemittel - Extraktion und Bestimmung von elementarem Schwefel This European Standard was approved by CEN on 29 October 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 16032:2011: ESIST EN 16032:2012
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