EN 16962:2018
(Main)Fertilizers - Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts
Fertilizers - Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts
This European Standard specifies a method for the extraction of water soluble forms of boron, cobalt, copper, iron, manganese, molybdenum and zinc from mineral fertilizers containing one or more micro-nutrients and the procedure for removal of organic compounds from the water extracts.
The extracts can be analysed according to EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 and CEN/TS 17060.
Düngemittel - Extraktion wasserlöslicher Spurennährstoffe aus Düngemitteln und Beseitigung organischer Verbindungen aus Düngemittelextrakten
Diese Europäische Norm legt ein Verfahren zur Extraktion wasserlöslicher Formen von Bor, Cobalt, Kupfer, Eisen, Mangan, Molybdän und Zink aus mineralischen Düngemitteln, die einen oder mehrere Spurennährstoffe enthalten, und das Verfahren zur Beseitigung organischer Verbindungen aus den Wasser¬extrakten fest.
Die Extrakte können nach EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 und nach CEN/TS 17060 analysiert werden.
Engrais - Extraction des oligo-éléments soluble dans l'eau des engrais et élimination des composés organiques dans les extraits d'engrais
La présente norme européenne spécifie la méthode pour l’extraction des formes solubles dans l’eau du bore, du cobalt, du cuivre, du fer, du manganèse, du molybdène et du zinc à partir d’engrais minéraux contenant un ou plusieurs oligo-éléments et le mode opératoire d’élimination des composés organiques dans les extraits aqueux.
Les extraits peuvent être analysés conformément aux EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 et CEN/TS 17060.
Gnojila - Ekstrakcija v vodi topnih mikrohranil iz gnojil in odstranitev organskih spojin iz ekstraktov gnojil
Ta evropski standard določa postopek za ekstrakcijo v vodi topnih oblik bora, kobalta, bakra, železa, mangana, molibdena in cinka iz mineralnih gnojil, ki vsebujejo eno ali več mikrohranil, ter postopek za odstranjevanje organskih zmesi iz ekstraktov vode.
Ekstrakti se lahko analizirajo skladno s standardi WI 00260173, prEN 16963, prEN 16965, WI 00260179, WI 00260180 in WI 00260182.
General Information
Overview
EN 16962:2018 (CEN) specifies a standardized laboratory method for the extraction of water‑soluble micro‑nutrients (boron, cobalt, copper, iron, manganese, molybdenum and zinc) from mineral fertilizers and for the removal of organic compounds from those water extracts. The method covers procedures for fertilizers with micro‑nutrient contents both ≤ 10 % and > 10 %, and defines preparation, extraction, acidification and optional organic‑matter removal steps so extracts can be reliably analysed by ICP‑AES, FAAS or spectrophotometric/gravi metric methods.
Key topics and requirements
- Scope: Extraction of water‑soluble forms of B, Co, Cu, Fe, Mn, Mo, Zn and removal of organic matter when required.
- Extraction principle: Shake fertilizer in water at (20 ± 2) °C for 60 minutes; adjust shaking intensity to prevent settling.
- Sample sizes and water ratios:
- For micro‑nutrient content ≤ 10 %: 5.00 g sample + 250 ml water.
- For micro‑nutrient content > 10 %: 2.00 g sample + 500 ml water.
- Acidification: After extraction, acidify extracts to a final 0.5 mol/L nitric acid concentration (or HCl 0.5 mol/L where specified, e.g., some molybdenum determinations or if Fe precipitation occurs).
- Removal of organic compounds (optional): Oxidize with hydrogen peroxide, allow reaction at room temperature, then boil to completion; re‑acidify and dilute as specified before analysis.
- Materials and apparatus: Use plastic or silica ware (avoid borosilicate glass for boron determinations), ash‑free filter paper or centrifugation, controlled shaker and hotplate.
- Storage: Acidified extracts can be stored in tightly closed plastic vessels for up to 15 days.
- Quality/precision: Precision assessed in inter‑laboratory studies; measurement precision data published in EN 16963 (ICP‑AES) and EN 16965 (FAAS).
- Safety & competence: Tests require trained laboratory staff and standard laboratory safety practices.
Applications and users
This standard is practical for:
- Fertilizer manufacturers and QC laboratories performing routine micro‑nutrient release testing.
- Accredited testing labs preparing extracts for ICP‑AES, FAAS or spectrophotometric analysis.
- Regulatory bodies and conformity assessment organizations verifying compliance with fertilizer regulations.
- Agronomy laboratories and R&D groups evaluating water‑soluble micro‑nutrient availability.
EN 16962 ensures consistent extraction and sample preparation so analytical results (e.g., water‑soluble nutrient content) are comparable across laboratories and suitable for regulatory, quality control and research purposes.
Related standards
Relevant standards referenced for analysis and sampling:
- EN 16963 - Determination using ICP‑AES
- EN 16965 - Determination using FAAS
- prEN 17041 / prEN 17042 / prEN 17043 - Boron & Molybdenum spectrophotometric/acidimetric methods
- CEN/TS 17060 - Molybdenum gravimetric determination
- EN ISO 3696 - Water for analytical laboratory use
- EN 1482‑1 / EN 1482‑2 - Sampling and sample preparation
Keywords: EN 16962:2018, fertilizers, water soluble micro‑nutrients, extraction method, removal of organic compounds, ICP‑AES, FAAS, boron, molybdenum, CEN.
Frequently Asked Questions
EN 16962:2018 is a standard published by the European Committee for Standardization (CEN). Its full title is "Fertilizers - Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts". This standard covers: This European Standard specifies a method for the extraction of water soluble forms of boron, cobalt, copper, iron, manganese, molybdenum and zinc from mineral fertilizers containing one or more micro-nutrients and the procedure for removal of organic compounds from the water extracts. The extracts can be analysed according to EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 and CEN/TS 17060.
This European Standard specifies a method for the extraction of water soluble forms of boron, cobalt, copper, iron, manganese, molybdenum and zinc from mineral fertilizers containing one or more micro-nutrients and the procedure for removal of organic compounds from the water extracts. The extracts can be analysed according to EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 and CEN/TS 17060.
EN 16962:2018 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 16962:2018 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.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gnojila - Ekstrakcija v vodi topnih mikrohranil iz gnojil in odstranitev organskih spojin iz ekstraktov gnojilDüngemittel - Extraktion wasserlöslicher Spurennährstoffe aus Düngemitteln und Beseitigung organischer Verbindungen aus DüngemittelextraktenEngrais - Extraction des oligo-éléments soluble dans l'eau des engrais et élimination des composés organiques dans les extraits d'engraisFertilizers - Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 16962:2018SIST EN 16962:2018en,fr,de01-junij-2018SIST EN 16962:2018SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16962
January
t r s z ICS
x wä r z r English Version
Fertilizers æ Extraction of water soluble microænutrients in fertilizers and removal of organic compounds from fertilizer extracts Engrais æ Extraction des oligoæéléments soluble dans l 5eau des engrais et élimination des composés organiques dans les extraits d 5engrais
Düngemittel æ Extraktion wasserlöslicher Spurennährstoffe aus Düngemitteln und Beseitigung organischer Verbindungen aus DüngemittelextraktenThis European Standard was approved by CEN on
s w October
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x { x tã t r s z ESIST EN 16962:2018
10 % . 6 8.1.2 Micro-nutrient content > 10 % . 6 8.2 Extraction . 7 8.3 Removal of organic compounds . 7 9 Precision . 8 10 Test report . 8 Bibliography . 9
10 % as well as of > 10 %. Removal of organic compounds is not usually necessary if FAAS or ICP-AES method of determination is used. It is applied only in some cases for determination of boron and molybdenum by spectrophotometric methods, determination of boron by acidimetric titration and gravimetric determination of molybdenum. The method for removal of organic compounds is a part of this standard. WARNING — Persons using this European Standard should be familiar with normal laboratory practice. This European Standard does not purport to address all of the safety issues, if any, associated with its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national regulatory conditions. IMPORTANT — It is absolutely essential that tests conducted according to this European Standard are carried out by suitably trained staff. SIST EN 16962:2018
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SIST EN 16962:2018 표준은 미네랄 비료에서 물에 용해되는 미량 영양소를 추출하는 방법을 명확히 규정하고 있습니다. 이 표준의 범위는 붕소, 코발트, 구리, 철, 망간, 몰리브덴 및 아연과 같은 물질을 포함하여 다양한 미량 영양소가 포함된 비료로부터 물에 용해된 형태를 추출하는 절차를 다루고 있습니다. 이러한 특정 비료 추출 방법은 비료의 분석 및 품질 관리에 중요한 역할을 하며, 농업 및 환경 과학에서의 적용이 상당히 이점이 있습니다. 또한, 물 추출물에서 유기 화합물을 제거하는 방법도 포함되어 있어, 비료의 순도 및 안정성을 보장하는 데 기여합니다. 표준의 강점 중 하나는 국제적으로 통용되는 분석 방법에 대한 명확한 절차를 제공한다는 점입니다. 이는 사용자가 EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 및 CEN/TS 17060과 같은 다른 관련 표준에 따라 추출물 분석을 원활하게 진행할 수 있도록 지원합니다. 따라서 SIST EN 16962:2018 표준은 비료에서 미량 영양소의 정확한 추출과 품질 관리를 위한 신뢰할 수 있는 기준을 제시하며, 유기 화합물의 제거를 통해 지속 가능한 농업 실천을 향한 중요한 단계로 자리 잡고 있습니다. 이와 같은 표준의 존재는 농업 분야의 다양한 이해관계자들에게 큰 도움이 되며, 비료의 안전성과 효율성을 확보하는 데 필수적입니다.
The EN 16962:2018 standard offers a comprehensive guideline for the extraction of water-soluble micro-nutrients from fertilizers, specifically focusing on essential elements such as boron, cobalt, copper, iron, manganese, molybdenum, and zinc. This standard is particularly relevant for industries involved in fertilizer production and quality testing, as it sets out a systematic method for ensuring that these crucial micro-nutrients can be accurately extracted from mineral fertilizers that contain one or more of these components. One of the significant strengths of this document is its clarity and detailed procedure for the removal of organic compounds from the fertilizer extracts, which can significantly impact the accuracy of subsequent analyses. The precise methodology outlined in EN 16962:2018 ensures consistency and reliability in testing, making it a valuable resource for laboratories and manufacturers aiming to comply with European standards. Furthermore, the integration of related testing methods referenced in the document, such as EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043, and CEN/TS 17060, establishes a robust framework for conducting comprehensive analyses. This interconnectedness enhances the relevance of EN 16962:2018 within the broader context of fertilizer quality assurance practices. In summary, the EN 16962:2018 standard not only provides a thorough mechanism for the extraction of water-soluble micro-nutrients from fertilizers but also reinforces the importance of purity in the analytical process by detailing the removal of organic compounds. Its applicability and adherence to European norms make it a critical document for professionals in the agricultural and fertilizer sectors.
SIST EN 16962:2018 bietet eine umfassende und wertvolle Grundlage für die Analyse von wasserlöslichen Mikronährstoffen in Düngemitteln. Der Standard spezifiziert ein Verfahren zur Extraktion von wasserlöslichen Formen von Bor, Kobalt, Kupfer, Eisen, Mangan, Molybdän und Zink aus mineralischen Düngemitteln, die eines oder mehrere Mikronährstoffe enthalten. Dies ist besonders wichtig, da das Verständnis der Verfügbarkeit dieser Mikronährstoffe in Düngemitteln für die landwirtschaftliche Praxis entscheidend ist. Die Stärken dieses Standards liegen in seiner präzisen Methodik, die eine zuverlässige und reproduzierbare Extraktion ermöglicht. Der klare Fokus auf die Entfernung organischer Verbindungen aus den Düngemittel-Extrakten ergänzt die Analysen, indem er sicherstellt, dass die Ergebnisse nicht durch die Anwesenheit unerwünschter Stoffe verzerrt werden. Dies fördert die Akzeptanz und Vertraulichkeit der Testmethoden. Darüber hinaus ist die Relevanz von SIST EN 16962:2018 im Kontext der europäischen Normen und der anschließenden Analyse laut den Normen EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 und CEN/TS 17060 unverkennbar. Die erforderlichen Schritte und Verfahren zur Analyse der Extrakte stehen in direktem Zusammenhang mit den genannten Standards und unterstreichen die Integration und Kohärenz innerhalb der europäischen Normungsstruktur. Insgesamt stellt SIST EN 16962:2018 einen bedeutenden Beitrag zur Standardisierung im Bereich von Düngemitteln dar, indem es die Methodik für die Extraktion wasserlöslicher Mikronährstoffe und die Entfernung organischer Verbindungen klar definiert. Dieses Dokument ist somit für Hersteller und Labore von zentraler Bedeutung, um die Qualität und Präzision in der Analyse von Düngemitteln zu gewährleisten.
SIST EN 16962:2018は、肥料中の水溶性微量栄養素の抽出および肥料抽出物からの有機化合物の除去に関する欧州標準を定めています。この標準は、ホウ素、コバルト、銅、鉄、マンガン、モリブデン、亜鉛といった複数の微量栄養素を含む鉱物肥料から、水溶性の形態を抽出するための方法を確立しており、肥料業界における重要なガイドラインを提供しています。 この標準の強みは、厳密な Extraction 方法が確立されている点です。これにより、農業や肥料製造業者は、微量栄養素の正確な含有量を測定し、肥料の品質を保証することが可能になります。また、有機化合物の除去手順が含まれているため、結果の信頼性向上に寄与します。このことは、肥料が環境に与える影響を最小限に抑えるために不可欠です。 さらに、SIST EN 16962:2018は、EN 16963、EN 16965、prEN 17041、prEN 17042、prEN 17043およびCEN/TS 17060といった他の関連規格と連携できるため、肥料品質評価の一環として効率的に活用できます。この統一性により、多様な肥料分析に対して一貫した基準を適用することができ、業界全体での標準化が進むことが期待されます。 全体として、SIST EN 16962:2018は、肥料中の水溶性微量栄養素の抽出と有機物除去に関する明確かつ実用的な標準を提供しており、肥料の製造と品質向上において重要な役割を果たすものです。
La norme EN 16962:2018 porte sur l'extraction de nutriments micro-solubles d'origine minérale, un domaine d'une importance croissante pour l'agriculture moderne. Elle spécifie une méthode claire et précise pour l'extraction des formes solubles dans l'eau de micro-nutriments essentiels tels que le bore, le cobalt, le cuivre, le fer, le manganèse, le molybdène et le zinc présents dans les engrais minéraux. L'une des forces majeures de cette norme est sa capacité à standardiser un processus qui est crucial pour garantir la qualité et l'efficacité des fertilisants. En établissant une méthode d'extraction rigoureuse, la norme facilite la comparaison des résultats d'analyses entre différentes entreprises et laboratoires, renforçant ainsi la confiance des agriculteurs et des producteurs dans la qualité des engrais utilisés. De plus, cette norme englobe également un procédé pour l'élimination des composés organiques des extraits d'engrais, augmentant ainsi la clarté des résultats d'analyse. Cette caractéristique est particulièrement pertinente dans le contexte actuel où la contamination croisée peut affecter les résultats et, par conséquent, les recommandations d'application. La norme EN 16962:2018 aménage aussi une complémentarité avec d'autres normes telles que EN 16963, EN 16965, prEN 17041, prEN 17042, prEN 17043 et CEN/TS 17060, ce qui démontre sa pertinence dans le cadre d'un système d'analyse intégré. Cela permet une meilleure compréhension des interactions entre les micro-nutriments et les autres éléments présents dans les engrais, soutenant ainsi une agriculture durable et scientifique. En somme, la norme EN 16962:2018 représente une avancée significative dans le domaine des fertilisants, en fournissant un cadre fiable pour l'analyse des micro-nutriments et en contribuant à l'amélioration des pratiques agricoles. Son adoption est une étape essentielle pour toute entreprise cherchant à garantir la qualité de ses produits sur le marché européen.
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