ASTM D4318-10e1 pdf free.Standard Test Methods For Liquid Limit, Plastic Limit, And Plasticity Index Of Soils. These test methods cover the determination of the liquid limit, plastic limit, and the plasticity index of soils as defined in Section 3 on Terminology. The methods described herein are performed only on that portion of a soil that passes the 425-μm (No. 40)...