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2. ASTM D2434–68, 2006a. Standard Test Method for Permeability of Granular Soils (Constant Head).
3. ASTM D5321 Test Method for Determining the Coefficient of Soil and Geosynthetic or Geosynthetic and Geosynthetic Friction by the Direct Shear Method.
4. ASTM D5617. Standard Test Method for Multi-Axial Tension Test for Geosynthetics.
5. ASTM D6539 – 00, 2006b. Standard Test Method for Measurement of Pneumatic Permeability of Partially Saturated Porous Materials by Flowing Air.