EN 16965:2018

Fertilizers - Determination of cobalt, copper, iron, manganese and zinc using flame atomic absorption spectrometry (FAAS)

This European Standard specifies a method for the determination of cobalt, copper, iron, manganese and zinc in fertilizer extracts using flame atomic absorption spectrometry (FAAS).
This method is applicable to water and aqua regia fertilizer extracts obtained according to EN 16962 and/or EN 16964.
NOTE   In most cases, the presence of small quantities of organic matter will not affect determinations by FAAS and it is not necessary to apply organic matter removal.

Düngemittel - Bestimmung von Cobalt, Kupfer, Eisen, Mangan und Zink mit Flammen-Atomabsorptionsspektrometrie (FAAS)

Diese Europäische Norm legt ein Verfahren zur Bestimmung von Cobalt, Kupfer, Eisen, Mangan und Zink in Düngemittelextrakten mit Flammen Atomabsorptionsspektrometrie (FAAS) fest.
Dieses Verfahren ist auf Wasser  und Königswasserextrakte von Düngemitteln anwendbar, die nach EN 16962 und/oder EN 16964 erhalten wurden.
ANMERKUNG   In den meisten Fällen wird das Vorhandensein geringer Mengen organischer Bestandteile die Bestimmung mit FAAS nicht beeinträchtigen, und es ist daher nicht notwendig, die Beseitigung organischer Bestandteile anzuwenden.

Engrais - Dosage du cobalt, du cuivre, du fer, du manganèse et du zinc par spectrométrie d'absorption atomique de flamme (FAAS)

La présente norme européenne spécifie une méthode pour le dosage du cobalt, du cuivre, du fer, du manganèse et du zinc dans les extraits d’engrais par spectrométrie d’absorption atomique de flamme (FAAS).
Cette méthode est applicable aux extraits d’engrais aqueux et à l’eau régale obtenus conformément à l’EN 16962 et/ou à l’EN 16964.
NOTE   Dans la plupart des cas, la présence de petites quantités de matière organique n’a aucune incidence sur les dosages par FAAS et il n’est pas nécessaire d’appliquer l’élimination de la matière organique.

Gnojila - Določevanje kobalta, bakra, železa, mangana in cinka s plamensko atomsko absorpcijsko spektrometrijo (FAAS)

Ta evropski standard določa metodo za določevanje kobalta, bakra, železa, mangana in cinka v ekstraktih gnojila s plamensko atomsko absorpcijsko spektrometrijo (FAAS).
Ta metoda se uporablja za ekstrakte gnojil v vodi in zlatotopki, pridobljene v skladu s standardom prEN 16962 in/ali prEN 16964.
OPOMBA:   V večini primerov prisotnost majhnih količin organske snovi ne bo vplivala na določitve FAAS in odstranjevanje organske snovi ni nujno.

General Information

• Status: Published
• Publication Date: 23-Jan-2018
• Withdrawal Date: 30-Jul-2018
• ICS: 65.080 - Fertilizers
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 7 - Chemical analysis
• 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 16965:2018 - Fertilizers - Determination of cobalt, copper, iron, manganese and zinc using flame atomic absorption spectrometry (FAAS)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SODPHQVNRDüngemittel - Bestimmung von Cobalt, Kupfer, Eisen, Mangan und Zink mit Flammen-Atomabsorptionsspektrometrie (FAAS)Engrais - Dosage du cobalt, du cuivre, du fer, du manganèse et du zinc par spectrométrie d'absorption atomique de flamme (FAAS)Fertilizers - Determination of cobalt, copper, iron, manganese and zinc using flame atomic absorption spectrometry (FAAS)65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 16965:2018SIST EN 16965:2018en,fr,de01-junij-2018SIST EN 16965:2018SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16965
January
t r s z ICS
x wä r z r English Version
Fertilizers æ Determination of cobaltá copperá ironá manganese and zinc using flame atomic absorption Engrais æ Dosage du cobaltá du cuivreá du ferá du manganèse et du zinc par spectrométrie d 5absorption
Düngemittel æ Bestimmung von Cobaltá Kupferá Eisená Mangan und Zink mit FlammenæThis 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 wã t r s z ESIST EN 16965:2018

Statistical results of the inter-laboratory test . 12 Bibliography . 22
10 % as well as of > 10 %. The inter-laboratory study reflects the final properties of the method for determination of individual micro-nutrients in water and aqua regia extracts including extraction steps. 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 16965:2018

= 1,4 g/ml. 6.2.1 Diluted nitric acid solution, c(HNO3) = 5 mol/l. Add 350 ml of nitric acid (6.2) to 650 ml of water (6.1). 6.2.2 Diluted nitric acid solution, c(HNO3) = 0,5 mol/l. Dilute 35 ml nitric acid (6.2.) to 1 l with water (6.1). 6.3 Hydrochloric acid, c(HCl) = 12 mol/l;
= 1,18 g/ml. 6.4 Mixed solution, 0,8 mol/l nitric acid and 1,8 mol/l hydrochloric acid. Add 150 ml of hydrochloric acid (6.3) and 56 ml nitric acid (6.2) to 800 ml of water (6.1). 6.5 Standard stock solutions, cobalt, copper, iron, manganese and zinc standard stock solutions,
= 1 000 mg/l for each element. Both single-element stock solutions and multi-element stock solutions with adequate specification, stating the acid used and the preparation technique, are commercially available. These solutions are considered to be stable for more than one year, but in reference to guaranteed stability, the recommendations of the manufacturer should be considered. Alternatively, the stock solutions may be prepared by dissolution of high purity metals. 6.5.1 Standard solution,
= 100 mg/l of element. Pipette 10 ml of the appropriate standard stock solution (6.5) into a 100 ml volumetric flask. Add 10 ml of diluted nitric acid (6.2.1), fill to the mark with water and mix well. This solution is used to prepare spiked test solutions and calibration solutions. 6.6 Lanthanum solution,
= 10 g/l lanthanum. Place 11,73 g of lanthanum oxide (La2O3) in a 500 ml beaker, add 150 ml of water and slowly add 140 ml of diluted nitric acid (6.2.1). After complete dissolution transfer the solution quantitatively into a 1 000 ml volumetric flask and then make up to 1 l with water (6.1) and mix thoroughly. The substance concentration of this solution amounts to approximately 0,5 mol/l nitric acid. Alternatively, lanthanum chloride, lanthanum sulfate or lanthanum nitrate may be used. Alternative procedures: Dissolve 26,7 g of lanthanum chloride heptahydrate (LaCl3 .7 H2O) or 31,2 g of lanthanum nitrate hexahydrate [La(NO3)3 .6 H2O] or 26,2 g of lanthanum sulfate nonahydrate [La2(SO4)3 .9 H2O] in 150 ml of water (6.1), then add 100 ml of diluted nitric acid (6.2.1). Allow to dissolve and then make up to 1 l with water (6.1). Mix thoroughly. The substance concentration of this solution amounts to approximately 0,5 mol/l nitric acid. SIST EN 16965:2018
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