1. ASTM. 2007. Standard test methods for particle-size analysis of soils. ASTM D422-63. West Conshohocken, PA: ASTM.
2. ASTM. 2010. Standard test methods for measurement of hydraulic conductivity of saturated porous materials using a flexible wall permeameter. ASTM D5084-10. West Conshohocken, PA: ASTM.
3. ASTM. 2012. Standard test methods for laboratory compaction characteristics of soil using standard effort (12400 ft-lbf/ft3(600 kN-m/m3)). ASTM D698-12. West Conshohocken, PA: ASTM.
4. ASTM. 2016. Standard test method for unconfined compressive strength of cohesive soil. ASTM D2166/D2166M-16. West Conshohocken, PA: ASTM.
5. ASTM. 2017. Standard practice for classification of soils for engineering purposes (unified soil classification system). ASTM D2487-7. West Conshohocken, PA: ASTM.