EN 16319:2013+A1:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Düngemittel und Kalkdünger - Bestimmung von Cadmium, Chrom, Blei und Nickel mit Atomemissionsspektrometrie mit induktiv gekoppeltem Plasma (ICP-AES) nach KönigswasseraufschlussEngrais et amendements minéraux basiques - Détermination du cadmium, chrome, plomb et nickel par spectrométrie d'émission atomique avec plasma induit par haute fréquence (ICP-AES) après digestion à l'eau régaleFertilizers and liming materials - Determination of cadmium, chromium, lead and nickel by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 16319:2013+A1:2015SIST EN 16319:2013+A1:2016en,fr,de01-marec-2016SIST EN 16319:2013+A1:2016SLOVENSKI
STANDARDSIST EN 16319:20131DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16319:2013+A1
December
t r s w ICS
x wä r z r Supersedes EN
s x u s {ã t r s uEnglish Version
Fertilizers and liming materials æ Determination of cadmiumá chromiumá lead and nickel by inductively after aqua regia dissolution Engrais et amendements minéraux basiques æ Détermination du cadmiumá chromeá plomb et nickel par spectrométrie d 5émission atomique avec plasma l 5eau régale
This European Standard was approved by CEN on
s w September
t r s u and includes Amendment
s approved by CEN on
y November
t r s wä
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
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s x u s {ã t r s u ªA sã t r s w ESIST EN 16319:2013+A1:2016

Results of the inter-laboratory test . 15 A.1 Inter-laboratory tests . 15 A.2 Statistical results for the determination of cadmium, chromium, lead and nickel !for fertilizers" . 15 A.3 Statistical results for the determination of cadmium, chromium, lead and nickel for liming materials . 17 Bibliography . 20
1,18 g/ml. 6.3 Nitric acid, c(HNO3) = 16 mol/l; not less than 65 % volume fraction;
1,42 g/ml. 6.4 Mixed solution of 0,8 mol/l nitric acid and 1,8 mol/l hydrochloric acid. Mix 150 ml of hydrochloric acid (6.2) and 50 ml nitric acid (6.3) to 1,0 l of water (6.1). 6.5 Standard stock solutions, cadmium, chromium, nickel and lead standard stock solutions, e.g.
= 1 000 mg/l for each element. Use suitable stock solutions. Both single-element stock solutions and multi-element stock solutions with adequate specification stating the acid used and the preparation technique are commercially available. It is recommended to use commercially available standard stock solutions for cadmium, chromium, nickel and lead. 6.6 Working standard solutions. Depending on the scope, different working standard solutions may be necessary. In general, when combining elements in working standard solutions, their chemical compatibility shall be regarded. Spectral interferences from other elements present in working standard solutions also need to be considered. Various combinations of elements at different concentrations may be used, provided that the standard stock solutions (6.5) are diluted with the same acid and in equal concentration as the acid in the test solution. NOTE In equal concentrations (in mg/l), cadmium, chromium, nickel and lead are compatible in a multi-element standard solution for the determination by ICP-AES for this application. 6.6.1 Working standard solution I,
= 100 mg/l for cadmium, chromium, nickel and lead. Dilute 10,0 ml of each standard stock solution of cadmium, chromium, nickel and lead (6.5) to 100,0 ml with the mixed acid solution (6.4) in the same 100 ml flask. If non-equal concentrations of cadmium, chromium, nickel and lead are needed, dilute the required volumes into 100,0 ml. This solution is used to prepare spiked test solutions and standard and calibration solutions. 6.6.2 Working standard solution II,
= 10 mg/l for cadmium, chromium, nickel and lead. Dilute 10,0 ml of the working standard solution I of cadmium, chromium, nickel and lead (6.6.1) to 100,0 ml with the mixed acid solution (6.4) in a 100 ml flask. If non-equal concentrations of cadmium, chromium, nickel and lead are needed, dilute the require volume from the standard stock solutions (6.5) into 100,0 ml. This solution is used to prepare spiked test solutions and calibration solutions. 7 Apparatus 7.1 Common laboratory glassware. 7.2 Analytical balance, capable of weighing to an accuracy of 1 mg. 7.3 Inductively coupled plasma-atomic emission spectrometer, with axial or radial viewing of the plasma and with suitable background correction. SIST EN 16319:2013+A1:2016

1) Whatman® 589/2 is an example of a suitable product available commercially. This information is given for the convenience of users of this European Standard and does not constitute an endorsement by CEN of this product. Equivalent products can be used if they can be shown to lead to the same results. SIST EN 16319:2013+A1:2016
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