Analysis of acid sulfate soil - Dried samples - Methods of test Determination of acid extractable sulfur in soil residue after peroxide oxidation (SRAS)
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 residual acid soluble sulfur (SRAS) in acid sulfate soil after peroxide digestion (AS 4969.3) and the determination of peroxide sulfur (SP) (AS 4969.5).
In order to perform this method, AS 4969.3 and AS 4969.5 shall have already been performed on the same test portion.
NOTES:
1 This extraction procedure recovers the relatively insoluble iron and aluminium hydroxy sulfate compounds (e.g. jarosite, natrojarosite, basaluminite) which are not measured to any significant extent in SP.
2 SRAS, unlike SNAS, (AS 4969.11) does not measure significant sulfur from organic matter as this is removed during rinsing of the soil residue. Some laboratories may prefer to perform SNAS analysis for operational reasons.
3 This procedure would normally only be performed on a soil with a potassium chloride pH ( 4.5 (pHKCl, (AS 4969.2) or where jarosite/natrojarosite and similar minerals have been identified in the soil when it was sampled.
| 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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