1. Standard definitions of terms and symbols relating to soil and rock mechanics;Designation D653-67,1973
2. Standard method of test for liquid limit of soils;Designation D423-66,1972
3. Standard method of test for plastic limit and plasticity index of soils;Designation D424-59,1971
4. Standard method of test for shrinkage factors of soils;Designation D427-61,1974