1. ASTM D4318 (2010) Standard test methods for liquid limit, plastic limit and plasticity index of soils. ASTM International, West Conshohocken, PA, USA
2. ASTM D5856 (2015) Standard test method for measurement of hydraulic conductivity of porous material using a rigid-wall, compaction-mold permeameter. ASTM International, West Conshohocken, PA, USA
3. ASTM D5890 (2011) Standard test method for swell index of clay mineral component of geosynthetic clay liners. ASTM International, West Conshohocken, PA, USA
4. ASTM D5993 (2014) Standard test method for measuring mass per unit of geosynthetic clay liners. ASTM International, West Conshohocken, PA, USA
5. ASTM D6913 (2017) Standard test methods for particle-size distribution (graduation) of soils using sieve analysis. ASTM International, West Conshohocken, PA, USA