CEN/TS 17338:2019

Liming materials - Determination of the lime requirement in soil - Ammonium acetate buffer method pH 5,5

This document specifies a method for the determination of the lime requirement of acid soils to target pH levels at requested time of maintenance as determined by reaction with 0,1 mol/l ammonium acetate pH 5,5.
Due to general soil buffering systems, the method is applicable to all soils which are acid enough to dissociate hydrogen ions from the soil colloid system to depress the pH of the buffer solution.
NOTE 1   The method originates from research in Canada and Norway, see [1] and [2].
NOTE 2   Annex A gives regression equations to predict the maintenance of a range of pH levels at different times after liming in mineral and organic soils in Europe.

Kalkdünger — Bestimmung des Kalkbedarfs von Böden — Ammoniumacetat-Pufferverfahren pH 5,5

Dieses Dokument legt ein Verfahren zur Bestimmung des Kalkbedarfs saurer Böden fest, um pH-Werte zu erreichen, die sich über einen gewünschten Zeitraum aufrechterhalten lassen. Dieser Kalkbedarf wird anhand einer Reaktion mit 0,1 mol/l Ammoniumacetat, pH 5,5, ermittelt.
Unter Berücksichtigung der im Boden vorhandenen Pufferkapazität ist das Verfahren auf alle Böden anwendbar, deren Säuregrad so hoch ist, dass Wasserstoff Ionen von Bodenkolloiden dissoziieren und den pH Wert der Pufferlösung senken.
ANMERKUNG 1   Das Verfahren geht auf Forschungsarbeiten in Kanada und Norwegen zurück, siehe [1] und [2].
ANMERKUNG 2   Anhang A enthält Regressionsgleichungen zur Berechnung der Aufrechterhaltung verschiedener Bereiche von pH-Werten zu bestimmten Zeitpunkten nach der Kalkung mineralischer und organischer Böden in Europa.

Amendements minéraux basiques - Détermination du besoin en chaux d’un sol - Méthode tampon d’acétate d’ammonium pH 5,5

Sredstva za apnjenje - Določanje potrebe po apnjenju tal - Metoda z amonijevim acetatnim pufrom pH 5,5

Ta evropska tehnična specifikacija določa metodo za določanje potrebe po apnjenju kislih tal za ciljne vrednosti pH v zahtevanem času vzdrževanja, kot je določeno z reakcijo z 0,1 mol/l amonijevega acetata pH 5,5.
Zaradi splošnih puferskih sistemov se metoda uporablja za vsa tla, ki so dovolj kisla, da se ločijo vodikovi ioni iz koloidnega sistema v tleh, da znižajo pH puferske raztopine.

General Information

• Status: Published
• Publication Date: 30-Apr-2019
• ICS: 65.080 - Fertilizers
• Technical Committee: CEN/TC 260 - Fertilizers and liming materials
• Drafting Committee: CEN/TC 260/WG 3 - Liming materials
• Ref Project: SIST-TS CEN/TS 17338:2019 - Liming materials - Determination of the lime requirement in soil - Ammonium acetate buffer method pH 5,5

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS CEN/TS 17338:2019
01-julij-2019
Sredstva za apnjenje - Določanje potrebe po apnjenju tal - Metoda z amonijevim
acetatnim pufrom pH 5,5
Liming materials - Determination of the lime requirement in soil - Ammonium acetate
buffer method pH 5,5
Kalkdünger - Bestimmung des Kalkbedarfs in Böden - Ammoniumazetat Pufferverfahren
pH 5
Amendements minéraux basiques - Détermination du besoin en bases d'un sol -
Méthode tampon d'acétate d'ammonium pH 5,5
Ta slovenski standard je istoveten z: CEN/TS 17338:2019
ICS:
65.080 Gnojila Fertilizers
SIST-TS CEN/TS 17338:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 17338:2019

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SIST-TS CEN/TS 17338:2019


CEN/TS 17338
TECHNICAL SPECIFICATION

SPÉCIFICATION TECHNIQUE

May 2019
TECHNISCHE SPEZIFIKATION
ICS 65.080
English Version

Liming materials - Determination of the lime requirement
in soil - Ammonium acetate buffer method pH 5,5
Amendements minéraux basiques - Détermination du Kalkdünger - Bestimmung des Kalkbedarfs von Böden -
besoin en chaux d'un sol - Méthode tampon d'acétate Ammoniumacetat-Pufferverfahren pH 5,5
d'ammonium pH 5,5
This Technical Specification (CEN/TS) was approved by CEN on 15 March 2019 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





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COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

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© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17338:2019 E
worldwide for CEN national Members.

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SIST-TS CEN/TS 17338:2019
CEN/TS 17338:2019 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Reagents . 5
6 Apparatus . 6
7 Preparation of the test portion . 6
8 Procedure and determination . 6
9 Calculation and expression of the results . 7
10 Test report . 8
Annex A (informative) Regression equations to predict the maintenance of a range
...