Tests performed by the geosynthetics laboratory include both standard and specialized procedures for determination of physical and engineering properties of geosynthetics. All laboratory staff receive test performance training based on American Standards for Testing Materials (ASTM), Geosynthetic Accreditation Institute (GAI). Geosynthetics laboratory must have an accredited through the Geosynthetic Accreditation Institute-Laboratory Accreditation Program (GAI-LAP).
Geotextiles:
ASTM D 5199 Thickness
ASTM D 5261 Mass per Unit Area
ASTM D 4751 Apparent Opening Size
ASTM D 4491 Permitivity
ASTM D 4632 Grab Strength
ASTM D 4533 Trapezoidal Tear Strength
ASTM D 4595 Wide Width Tensile Strength
ASTM D 4833 Puncture Strength
ASTM D 4884 Sewn Seam Strength
Geosynthetic Clay Liners:
GRI GCL1 Permeability
ASTM D 4643 Bentonite Moisture Content
USP-NF-XVII Bentonite Swell Index
ASTM D 5261 Mass per Unit Area
Geogrids:
ASTM D 4595 Wide Width Tensile
GRI GG1 Rib Tensile
GRI GG2 Junction Tensile
Geomembranes:
ASTM D 5199 Thickness
ASTM D 792 Density
ASTM D 638 Tensile Properties
ASTM D 882 "ASTM D 751
"ASTM D 4595 Wide Width Tensile Strength
ASTM D 1004 Tear Resistance
ASTM D 4833 Puncture Resistance
ASTM D 5321 Direct Shear
ASTM D 413 Seam Peel/Shear
ASTM D 751
"ASTM D 3083
"ASTM D 4437
"ASTM D 6392 "
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