Analysis of acid sulfate soil - Dried samples - Methods of test Complete suspension peroxide oxidation combined acidity and sulfur (SPOCAS) method
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 pH in a 1 M KCl soil suspension, and, where required, titratable actual acidity (TAA) in acid sulfate soil. Following this, potassium chloride extractable sulfur (SKCl), calcium (CaKCl) and magnesium (MgKCl) are determined. On a separate test portion, peroxide pH (pHOX), titratable peroxide acidity (TPA) and excess acid neutralizing capacity (ANCE) are determined following digestion with 30% hydrogen peroxide. Following this, peroxide sulfur (SP), calcium (CaP) and magnesium (MgP) are determined. On samples where jarosite is present, or pHKCl < 4.5, residual acid soluble sulfur (SRAS) is determined on the soil residue remaining after peroxide digestion.
| 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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