prEN ISO 15959

Fertilizers - Determination of extracted phosphorus (ISO 15959:2016)

ISO 15959:2016 specifies a method for the determination of phosphorus in fertilizer extracts.
The method is applicable to all extracts of fertilizers for the determination of the different forms of phosphorus as phosphorus soluble in mineral acids, water soluble phosphorus, phosphorus soluble in solutions of ammonium citrate, phosphorus soluble in 2 % citric acid and phosphorus soluble in 2 % formic acid.

Düngemittel - Bestimmung von Phosphor in den Extrakten (ISO 15959:2016)

Engrais - Dosage du phosphore extrait (ISO 15959:2016)

La présente Norme internationale spécifie une méthode de dosage du phosphore dans des extraits d'engrais.
La méthode est applicable à tous les extraits d'engrais pour le dosage des différentes formes de phosphore telles que le phosphore soluble dans les acides minéraux, dans l'eau, dans des solutions de citrate d'ammonium, dans l'acide citrique à 2 % et dans l'acide formique à 2 %.

Gnojila - Določevanje ekstrahiranega fosforja (ISO 15959:2016)

General Information

• Status: Not Published
• Publication Date: 03-Mar-2021
• ICS: 65.080 - Fertilizers
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 7 - Chemical analysis
• Current Stage: 4098 - Decision to abandon - Enquiry
• Completion Date: 07-Jan-2020
• Ref Project: oSIST prEN ISO 15959:2019 - Fertilizers - Determination of extracted phosphorus (ISO 15959:2016)

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 15959:2019
01-junij-2019
Gnojila - Določevanje ekstrahiranega fosforja (ISO 15959:2016)
Fertilizers - Determination of extracted phosphorus (ISO 15959:2016)
Düngemittel - Bestimmung von Phosphor in den Extrakten; Deutsche und Englische
Fassung prEN ISO 15959:2018
Engrais - Dosage du phosphore extrait (ISO 15959:2016)
Ta slovenski standard je istoveten z: prEN ISO 15959
ICS:
65.080 Gnojila Fertilizers
oSIST prEN ISO 15959:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 15959:2019

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oSIST prEN ISO 15959:2019
INTERNATIONAL ISO
STANDARD 15959
First edition
2016-07-15
Fertilizers — Determination of
extracted phosphorus
Engrais — Dosage du phosphore extrait
Reference number
ISO 15959:2016(E)
©
ISO 2016

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oSIST prEN ISO 15959:2019
ISO 15959:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
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Tel. [phone]
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www.iso.org
ii © ISO 2016 – All rights reserved

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oSIST prEN ISO 15959:2019
ISO 15959:2016(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Sampling and sample preparation . 1
6 Reagents . 1
7 Apparatus . 2
8 Procedure. 3
8.1 Treatment of the solution . 3
8.2 Hydrolysis . 3
8.3 Weighing the crucible . 3
8.4 Precipitation . 3
8.5 Filtering and washing . 3
8.6 Drying and weighing .
...