Analysis of acid sulfate soil - Dried samples - Methods of test Determination of peroxide sulfur (SP), calcium (CaP) and magnesium (MgP)
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 sulfur (SP), calcium (CaP) and magnesium (MgP) in acid sulfate soil after hydrogen peroxide digestion and the determination of pHOX, and TPA and ANCE in AS 4969.3.
NOTES:
1 This method recovers soluble and exchangeable sulfate, sulfate from gypsum, sulfate formed by oxidation of sulfide, sulfur released by the breakdown of organic matter as well as, variable amounts of sulfate from iron and aluminium sulfate minerals or compounds. Sulfate from jarosite and natrojarosite is not appreciably recovered. Methods to determine the residual sulfur held in these iron hydroxy-sulfate minerals are detailed in AS 4969.6 and AS 4969.11.
2 The peroxide extraction procedure recovers soluble and exchangeable calcium and magnesium, and calcium from gypsum. Calcium and/or magnesium released by the acid dissolution of carbonate, oxide or hydroxide minerals are also recovered.
3 The peroxide sulfur (SP) measurement can be used in combination with KCl extractable sulfur (SKCl, AS 4969.4) to calculate the peroxide oxidizable sulfur (SPOS, AS 4969.10).
4 The peroxide calcium (CaP) and magnesium (MgP) can be used in combination with KCl extractable calcium (CaKCl) and magnesium (MgKCl) (AS 4969.4) to determine ‘reacted’ calcium (CaA) and magnesium (MgA) (AS 4969.10).
5 The residual acid soluble sulfur (SRAS) (AS 4969.6) can be determined on the entire soil residue following measurement of SP.
| 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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