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BS EN ISO 14254:2011

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Soil quality. Determination of exchangeable acidity in barium chloride extracts
Available format(s)

Hardcopy , PDF

Superseded date

08-18-2018

Language(s)

English

Published date

07-31-2011

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sample
7 Procedure
8 Calculations
9 Test report

Defines a method for the determination of exchangeable acidity in barium chloride extracts of soil samples obtained according to ISO 11260.

This International Standard specifies a method for the determination of exchangeable acidity in barium chloride extracts of soil samples obtained according to ISO 11260.

The procedure described herein mainly concerns the determination of total exchangeable acidity by means of a fixed-pH end-point titration (see note). Two optional procedures are also given, describing respectively, determinations of free H+ acidity and of aluminium in the extracts.

This International Standard is applicable to all types of air-dry soil samples which have been pretreated in accordance with ISO 11464.

NOTE Titration of exchangeable acidity by means of a fixed-pH end-point may not be specific to a given acid species. The end-point pH value retained is 7,8, corresponding to complete precipitation of Al+3 ions in synthetic solutions. Titration of soil extracts to this pH may also include some more weakly ionized species or weak acid organic compounds.

Committee
EH/4
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
ISO 14254:2001 Identical
EN ISO 14254:2018 Identical

ISO 11464:2006 Soil quality Pretreatment of samples for physico-chemical analysis
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 11260:1994 Soil quality Determination of effective cation exchange capacity and base saturation level using barium chloride solution

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Hardcopy - English
PDF - English
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