1. Standard test method for specific gravity of solids by gas pycnometer D5550-94;American_Society_for_Testing_and_Materials,1997
2. Standard test methods for laboratory determination of water (moisture) content of soil and rock by mass D2216-05;American_Society_for_Testing_and_Materials,2006
3. Standard practice for description and identification of soils (visual-manual procedure) D 2488;American_Society_for_Testing_and_Materials,2008
4. Standard test method for one-dimensional consolidation properties of saturated cohesive soils using controlled-strain loading D 4186;American_Society_for_Testing_and_Materials,2008
5. Standard test methods for liquid limit, plastic limit, and plasticity index of soils D 4318;American_Society_for_Testing_and_Materials,2008