This Standard provides a general introduction to acid sulfate soil and the approaches that can be used to measure the various components of this special group of soils and their potential to produce acidity. It provides a compilation of the test methods, identification and definitions of the symbols, terms and acronyms used in the AS 4969 series. While part of the decision-making process can involve the analysis of prepared wet or dry samples this Standard specifically outlines the procedures that are involved for preparing and analysing dried samples (see Figure 1).

NOTE: Standards for the pre-treatment and analysis of wet samples are under development.