1. AS (2009). Methods of testing soils for engineering purposes soil classification tests - determination of the plastic limit of a soil. 1289.3.2.1, Standards Australia, Australia.
2. AS (2009). Methods of testing soils for engineering purposes soil classification tests - determination of the particle size distribution of a soil - standard method of analysis by sieving. 1289.3.6.1, Standards Australia, Australia.
3. AS (2015). Methods of testing soils for engineering purposes soil classification tests - determination of the cone liquid limit of a soil. 1289.3.9.1, Standards Australia, Australia.
4. AS (2020). Methods of testing soils for engineering purposes soil classification tests - determination of the particle size distribution of a soil - method of fine analysis using an hydrometer. 1289.3.6.3, Standards Australia, Australia.
5. ASTM (2016). Standard test method for specific gravity of soil solids by gas pycnometer. D5550–14. West Conshohocken, PA: ASTM.