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CEN/TS 17338:2019:en

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

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Scope
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 1The method originates from research in Canada and Norway, see [1] and [2]. NOTE 2Annex 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.

The standards writing body responsible for this document in Finland is Kemesta.
Product group(s)
65.080 Fertilizers »
Relationships
Normative references
EN 12944-3:2019 Fertilizers and liming materials - Vocabulary - Part 3: Terms relating to liming materials
EN ISO 11272:2017 Soil quality - Determination of dry bulk density (ISO 11272:2017)
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
Technical committee
CEN/TC 260 Fertilizers and liming materials »
Date of implementation
10.05.2019
Published
14.05.2019
Edition
1
Pages
13
Language(s)
English

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