SIST EN 15921:2011
(Main)Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
This document specifies the procedure for the determination of soluble phosphorus in alkaline ammonium citrate.
The method is applicable exclusively to precipitated dehydrated dicalcium phosphate (CaHPO4 . 2H2O).
Düngemittel - Extraktion des löslichen Phosphors nach Petermann bei 65 °C
Das vorliegende Dokument legt ein Verfahren zur Bestimmung des in alkalischem Ammoniumcitrat löslichen Phosphors fest.
Das Verfahren ist ausschließlich auf Dicalciumphosphat-Dihydrat (CaHPO4 2 H2O) anwendbar.
Engrais - Extraction du phosphore selon Petermann à 65 °C
Le présent document décrit le mode opératoire de dosage du phosphore soluble dans le citrate d’ammoniaque alcalin.
La présente méthode s’applique exclusivement au phosphate bicalcique précipité dihydrate (CaHPO4 . 2H2O).
Gnojila - Ekstrakcija topnega fosforja po Petermannu pri 65 °C
Ta dokument opredeljuje postopek določanja topnega fosforja v amonijevem citratu v alkalnem mediju. Metoda velja izključno za oborjeni kalcijev hidrogen fosfat dihidrat (CaHPO4 - 2H2O).
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gnojila - Ekstrakcija topnega fosforja po Petermannu pri 65 °CDüngemittel - Extraktion des löslichen Phosphors nach Petermann bei 65 °CEngrais - Extraction du phosphore selon Petermann à 65 °CFertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 15921:2011SIST EN 15921:2011en,fr,de01-oktober-2011SIST EN 15921:2011SLOVENSKI
STANDARDSIST-TS CEN/TS 15921:20101DGRPHãþD
SIST EN 15921:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15921
June 2011 ICS 65.080 Supersedes CEN/TS 15921:2009English Version
Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
Engrais - Extraction du phosphore soluble selon Petermann à 65 °C
Düngemittel - Extraktion des löslichen Phosphors nach Petermann bei 65 °C This European Standard was approved by CEN on 29 April 2011.
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
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
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 15921:2011: ESIST EN 15921:2011
EN 15921:2011 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Principle .4 5 Sampling .4 6 Reagents .5 7 Apparatus .6 8 Procedure .6 Bibliography .7
SIST EN 15921:2011
EN 15921:2011 (E) 3 Foreword This document (EN 15921:2011) has been prepared by Technical Committee CEN/TC 260 “Fertilizers and liming materials”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN/TS 15921:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom. SIST EN 15921:2011
EN 15921:2011 (E) 4 1 Scope This document specifies the procedure for the determination of soluble phosphorus in alkaline ammonium citrate. The method is applicable exclusively to precipitated dehydrated dicalcium phosphate (CaHPO4 . 2H2O). 2 Normative references The following referenced documents are indispensable for the application of this document.
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