EN 15962:2011

Fertilizers - Determination of the complexed micro-nutrient content and of the complexed fraction of micro-nutrients

This European Standard specifies a general method for the determination of the micronutrients complexed by complexing agents in fertilizers. The method allows the determination of the total concentration of each complexed micronutrient in complexes after subtraction of the chelated micro-nutrients content, but it does not identify the individual complexing agents.
This procedure concerns EC-fertilizers which contain complexed micro-nutrients covered by Regulation (EC) No 2003/2003 [1]. The method is applicable to a mass fraction of the metal complexed of at least 0,07 %, 0,006 % and 0,035 % of Fe, Mn and Zn respectively (see [2]). A lower limit of quantification has not been established for Cu and Co.

Düngemittel - Bestimmung des Gehalts an komplexgebundenen Spurennährstoffionen und der komplexgebundenen Fraktion von Spurennährstoffen

Diese Europäische Norm legt ein allgemeines Verfahren zur Bestimmung der durch Komplexbildner komplex-gebundenen Spurennährstoffe in Düngemitteln fest. Das Verfahren ermöglicht die Bestimmung der Gesamt-konzentration jedes komplexgebundenen Spurennährstoffs nach Subtraktion des Gehalts an chelatisierten Spurennährstoffen, identifiziert jedoch nicht die einzelnen Komplex¬bildner.
Das vorliegende Verfahren gilt für EG Düngemittel, die komplexgebundene Spurennährstoffe enthalten, entsprechend der Verordnung (EG) Nr. 2003/2003 [1]. Das Verfahren gilt für einen Massenanteil an komplexgebundenem Metall von mindestens 0,07 %, 0,006 % bzw. 0,035 % Fe, Mn bzw. Zn (siehe [2]). Eine niedrigere Bestimmungsgrenze ist für Cu und Co nicht festgestellt worden.

Engrais - Dosage de la teneur en oligo-élément complexé et de la fraction complexée des oligo-éléments

La présente norme européenne décrit une méthode générale de dosage, dans des engrais, d’oligo-éléments complexés par des agents complexants. La méthode permet de doser la concentration totale en chaque oligo-élément complexé dans des complexes, après avoir soustrait la teneur en oligo-éléments chélatés, mais ne permet pas d’identifier les différents agents complexants.
Ce mode opératoire concerne les engrais CE qui contiennent des oligo-éléments complexés couverts par le règlement (CE) N°2003/2003. La méthode est applicable à une fraction massique du métal complexé d’au moins 0,07 %, 0,006 % et 0,035 % de Fe, Mn et Zn respectivement (voir [2]). Une limite de quantification plus basse n’a pas été établie pour Cu et Co.

Gnojila - Določevanje kompleksiranih mikrohranil in kompleksiranih frakcij mikrohranil

Ta evropski standard opredeljuje splošno metodo za določevanje mikrohranil, kompleksiranih s kompleksanti, v gnojilih. Metoda omogoča določevanje skupne koncentracije vsakega kompleksiranega mikrohranila v kompleksih po odvzetju vsebnosti kelatnih mikrohranil, vendar ne prepozna posameznih kompleksantov. Ta postopek zadeva gnojila ES, ki vsebujejo kompleksirana mikrohranila, ki jih zajema Uredba (ES) št. 2003/2003. Metoda se uporablja za masni delež kovine, kompleksirane z najmanj 0,07 %, 0,006 % in 0,035 % Fe, Mn in Zn v tem zaporedju (glej [2]). Nižja meja količinskega določanja ni bila vzpostavljena za Cu in Co.

General Information

• Status: Published
• Publication Date: 18-Jan-2011
• ICS: 65.080 - Fertilizers
• ICS: 65.120 - Animal feeding stuffs
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 5 - Determination of chelating agents
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 27-Apr-2022
• Directive: 2003/2003 - Regulation (EC) N° 2003/2003 of the European Parlament and of the council of 13 October 2003 relating to fertilisers
• 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/335 - Standardization Mandate assigned to the CEN concerning the modernisation of the methods of anylysis of Fertilizers
• Ref Project: SIST EN 15962:2011 - Fertilizers - Determination of the complexed micro-nutrient content and of the complexed fraction of micro-nutrients

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.PLNURKUDQLODüngemittel - Bestimmung des Gehalts an komplexgebundenen Mikronährstoffionen und der komplexgebundenen Fraktion von MikronährstoffenEngrais - Détermination des micro-nutriments ironique quels sont complexe manié et de fraction complexe manié des micro-nutrimentsFertilizers - Determination of the complexed micro-nutrient content and of the complexed fraction of micro-nutrients65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 15962:2011SIST EN 15962:2011en,fr,de01-oktober-2011SIST EN 15962:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15962
January 2011 ICS 65.080 English Version
Fertilizers - Determination of the complexed micro-nutrient content and of the complexed fraction of micro-nutrients
Engrais - Dosage de la teneur en oligo-élément complexé et de la fraction complexée des oligo-éléments
Düngemittel - Bestimmung des Gehalts an komplexgebundenen Spurennährstoffionen und der komplexgebundenen Fraktion von Spurennährstoffen This European Standard was approved by CEN on 3 December 2010.
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
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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 15962:2011: ESIST EN 15962:2011

Results of the inter-laboratory test . 10A.1Test samples . 10A.2Inter-laboratory test procedure . 10A.3Results and statistical interpretation. 10Bibliography . 14 SIST EN 15962:2011

If insoluble matter is observed, filter immediately after the final volume has been reached using cellulose filters (5.5). 8.2 Precipitation Pipette 20 ml of the solution (8.1) into a 50 ml beaker. Add two drops of H2O2 (6.2), stir and rise pH, with NaOH 0,5 mol/l (6.3) or 0,05 mol/l (6.4), to 9,0 as fast as possible in order to avoid reaction with atmospheric carbon dioxide. Cover the beaker. Rise pH again to 9,0 after 30 min and cover the beaker again. Let the solution stand for a minimum of 18 h and a maximum of 24 h in the dark. Readjust the pH to 9,0, transfer the sample to a 100 ml volumetric flask and dilute to the mark with water (6.1). Filtrate the solution through the membrane filter (5.4). If precipitation is observed and filtration is difficult then samples may be centrifuged at 7 500 min-1 at 20 ºC to 25 ºC for 10 min before filtration. The acidification of the solution required for the spectrometric determination (8.3) should be made as soon as possible after the precipitation process, in order to stabilize the solution. 8.3 Spectrometric determination Determine the micro-nutrient concentration in the filtrate after precipitation procedure (8.2) by atomic absorption spectrometry (AAS) or by inductively coupled plasma emission spectrometry (ICP-ES). The AAS determination may be carried out in accordance with the appropriate methods (see Regulation (EC) No 2003/2003). If flame AAS is used, removal of the organic compounds is required, and should be made in accordance with method 9.3 ([1]) using H2O2 (6.2) and HCl 0,5 mol/l for the digestion of the samples and 0,5 % La as La(NO3)3, 0,2 % Cs as CsCl and 5 % HCl as matrix modifier.
Let d(i) be the micro-nutrient concentration of the filtrate, in milligrams per litre. 8.4 Water-soluble micro-nutrient content determination Extract following method 9.2 ([1]). The same sample solutions 8.1 may be used in some cases. Determine the water-soluble micro-nutrient content in the sample by AAS or by ICP. The AAS determination may be carried out in accordance with the appropriate EC methods, referred to in [1]. If flame AAS is used, removal of the organic compounds is required and should be made in accordance with method 9.3 ([1]) using H2O2 (6.2) and HCl 0,5 mol/l for the digestion of the samples and 0,5 % La as La(NO3)3, 0,2 % Cs as CsCl and 5 % HCl as matrix mod
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