Analysis of acid sulfate soil - Dried samples - Methods of test Determination of peroxide pH (pHOX), titratable peroxide acidity (TPA) and excess acid neutralizing capacity (ANCE)
Standards Australia
RECONFIRMATION NOTICE
Technical Committee EV-009 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 02 May 2018.
The following are represented on Technical Committee EV-009:
Australasian Land & Groundwater Association
Australian Contaminated Land Consultants Association
Chem Centre
Department of Economic Development, Jobs, Transport and Resources (VIC)
Department of Environment and Science (QLD)
Environmental Laboratory Industry Group
National Association of Testing Authorities Australia
National Measurement Institute
Soil Science Australia
The University of Sydney
University of South Australia
This Standard specifies a method for the determination of peroxide pH (pHOX), titratable peroxide acidity (TPA) and excess acid neutralizing capacity (ANCE) in acid sulfate soil following digestion with 30% hydrogen peroxide.
NOTES:
1 The TPA measurement does not quantitatively recover retained acidity held in iron and aluminium hydroxy-sulfate minerals such as jarosite [KFe3(SO4)2(OH)6] and similar minerals. Methods to determine the retained acidity are given in AS 4969.6 and AS 4969.11.
2 The suspension obtained from this method can be analysed subsequently to determine peroxide sulfur, calcium and magnesium (AS 4969.5) followed by the determination of SRAS on the digested soil residue (AS 4969.6).
| Document Type | Standard |
| Status | Current |
| Publisher | Standards Australia |
| ProductNote | Reconfirmed 25/05/2018. This standard has been reconfirmed in Australia in 2018 and remains current in New Zealand. Reconfirmation Notice 25/05/2018 |
| Committee | EV-009 |
| Supersedes |
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