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AS 4969.3-2008

Current
Current

The latest, up-to-date edition.

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)
Available format(s)

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Language(s)

English

Published date

06-30-2008

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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.

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).

Committee
EV-009
DocumentType
Standard
ISBN
0 7337 8722 3
Pages
13
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
PublisherName
Standards Australia
Status
Current
Supersedes

First published as AS 4969.3-2008.Reconfirmed 2018. First published as AS 4969.3-2008.

AS/NZS 2243.8:2006 Safety in laboratories - Fume cupboards
AS 2164-2003 Laboratory glassware - One-mark volumetric flasks
AS 2162.1-1996 Verification and use of volumetric apparatus General - Volumetric glassware
AS 1006-1995 Solid-stem general purpose thermometers
AS 2167-2005 Graduated straight pipettes
AS 4969.5-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Determination of peroxide sulfur (SP), calcium (CaP) and magnesium (MgP)
AS 4969.0-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Introduction and definitions, symbols and acronyms
AS/NZS 2243.2:2006 Safety in laboratories Chemical aspects
AS 2165-1996 Laboratory glassware - Burettes
AS 4969.6-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Determination of acid extractable sulfur in soil residue after peroxide oxidation (SRAS) (Reconfirmed 2018)
AS 4969.1-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Pre-treatment of samples
AS 4969.11-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Calculation of net acid-soluble sulfur (SNAS), calcium (CaNAS) and magnesium (MgNAS)
AS/NZS 2243.10:2004 Safety in laboratories Storage of chemicals
AS/NZS 2243.1:2005 Safety in laboratories Planning and operational aspects
AS 4969.2-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Determination of pH
AS 2162.2-1998 Verification and use of volumetric apparatus - Guide to the use of piston-operated volumetric apparatus (POVA)
AS 2166-2002 Laboratory glassware - One-mark pipettes

AS 4969.9-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Calculation of titratable sulfidic acidity (TSA)
AS 4969.14-2009 Analysis of acid sulfate soil - Dried samples - Methods of test Calculation of the acid-producing potential of acid sulfate soil using an acid base accounting method (Reconfirmed 2018)
AS 4969.5-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Determination of peroxide sulfur (SP), calcium (CaP) and magnesium (MgP)
AS 4969.6-2008 Analysis of acid sulfate soil - Dried samples - Methods of test Determination of acid extractable sulfur in soil residue after peroxide oxidation (SRAS) (Reconfirmed 2018)

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