EN 13368-1:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Düngemittel - Bestimmung von Chelatbildnern in Düngemitteln mit Chromatographie - Teil 1: Bestimmung von EDTA, HEEDTA und DTPA mit IonenchromatographieEngrais - Détermination des agents chélatants dans les engrais par chromatographie - Partie 1: Détermination du EDTA, HEEDTA et DTPA par chromatographie ioniqueFertilizers - Determination of chelating agents in fertilizers by chromatography - Part 1: Determination of EDTA, HEEDTA and DTPA by ion chromatography65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 13368-1:2014SIST EN 13368-1:2014en,fr,de01-marec-2014SIST EN 13368-1:2014SLOVENSKI
STANDARDSIST EN 13368-1:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13368-1
January 2014 ICS 65.080 Supersedes EN 13368-1:2001English Version
Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 1: Determination of EDTA, HEEDTA and DTPA by ion chromatography
Engrais - Détermination des agents chélatants dans les engrais par chromatographie - Partie 1: Détermination du EDTA, HEEDTA et DTPA par chromatographie ionique
Düngemittel - Bestimmung von Chelatbildnern in Düngemitteln mit Chromatographie - Teil 1: Bestimmung von EDTA, HEEDTA und DTPA mit IonenchromatographieThis European Standard was approved by CEN on 16 November 2013.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
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= 1,67 g/ml) to 1 l with water. 7 Apparatus Usual laboratory equipment, glassware, and the following: 7.1 Rotary shaker, capable of operating at a rotational speed of about 35 min−1 to 45 min−1. 7.2 Chromatograph, equipped with: a) an isocratic pump delivering the eluent (6.8) at a flow rate of 0,5 ml/min; b) an injection valve with an injection loop of about 50 µl; c) an anion exchange separator column 10 µm particles – 2 % substrate x – linking 100 mmolc capacity (per column) – alkyl quaternary ammonium – medium high (hydrophobic)1); NOTE 1 The column mentioned in c) is not exclusive. Any anion exchange column with comparable capacity, hydrophobicity, and selectivity can probably be used. NOTE 2 Columns can, in their native state, exhibit some sensitivity towards various anions (e.g. nitrate, sulfate, phosphate) which can disappear after treatment with excess iron. It can be necessary to precondition the column prior to its use by repeated injections, at least 10, of the iron(III) solution (6.9), followed by equilibration under eluent flow for at lea
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