1. Test Method for Relative Density of Cohesionless Soils;ASTM,1999
2. Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer;ASTM,2016
3. Standard Test Methods for Minimum Index Density and Unit Weight of Soils and Calculation of Relative Density;ASTM,2016
4. Standard Test Methods for Maximum Index Density and Unit Weight of Soils Using a Vibratory Table;ASTM,2016
5. Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System);ASTM,2017