Soil quality. Acid-base accounting procedure for acid sulfate soils Suspension peroxide oxidation combined acidity and sulfur (SPOCAS) methodology

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-09-2014

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Procedure for determination of pH[KCl] and TAA
8 Calculation of TAA
9 Procedure for determination of sulfur (S[KCl]), calcium
   (Ca[KCl]) and magnesium (Mg[KCl]) extractable with
   1 mol/l potassium chloride
10 Calculation of S[KCl], Ca[KCl] and Mg[KCl]
11 Procedure for determination of peroxide pH (pH[OX]),
   titratable peroxide acidity (TPA) and excess acid
   neutralizing capacity (ANC[E])
12 Calculation of TPA and ANC[E]
13 Procedure for determining peroxide sulfur (S[P]),
   calcium (Ca[P]) and magnesium (Mg[P])
14 Calculation of peroxide sulfur (S[P]), calcium (Ca[P])
   and magnesium (Mg[P])
15 Procedure for determining acid extractable sulfur in
   soil residue after peroxide oxidation (S[RAS])
16 Calculation of S[RAS]
17 Calculation of TSA
18 Calculation of S[POS], Ca[A] and Mg[A]
19 Precision
20 Test report
Bibliography

Defines a suite of methods used to determine net acidity in acid sulfate soils.

This part of ISO14388 specifies a suite of methods used to determine net acidity in acid sulfate soils. This part of ISO14388 specifies a method for the determination of pH in a 1mol/l potassium chloride soil suspension (pHKCl) and where required, titratable actual acidity (TAA). Following this, potassium chloride extractable sulfur (SKCl), calcium (CaKCl) and magnesium (MgKCl) are determined. On a separate test portion, following digestion with 30% hydrogen peroxide, peroxide pH (pHOX), titratable peroxide acidity (TPA) and excess acid neutralizing capacity (ANCE) are determined. Following this, peroxide sulfur (SP), calcium (CaP) and magnesium (MgP) are determined. On samples where jarosite is present, or where pHKCl is

Committee	EH/4
DevelopmentNote	Supersedes 13/30259628 DC. (09/2014)
DocumentType	Standard
Pages	32
PublisherName	British Standards Institution
Status	Current
Supersedes	13/30259628 DC : 0

Standards	Relationship
ISO 14388-3:2014	Identical

ISO 14254:2001	Soil quality Determination of exchangeable acidity in barium chloride extracts
ISO 8655-5:2002	Piston-operated volumetric apparatus Part 5: Dispensers
ISO 8655-1:2002	Piston-operated volumetric apparatus Part 1: Terminology, general requirements and user recommendations
ISO 1042:1998	Laboratory glassware One-mark volumetric flasks
ISO 648:2008	Laboratory glassware — Single-volume pipettes
ISO 835:2007	Laboratory glassware — Graduated pipettes
ISO 8655-2:2002	Piston-operated volumetric apparatus Part 2: Piston pipettes
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods
ISO 8655-3:2002	Piston-operated volumetric apparatus Part 3: Piston burettes
ISO 14388-1:2014	Soil quality Acid-base accounting procedure for acid sulfate soils Part 1: Introduction and definitions, symbols and acronyms, sampling and sample preparation

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BS ISO 14388-3:2014

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

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