ASTM D2487

Full Name

ASTM D2487 – Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)


This practice describes a system for classifying mineral and organo-mineral soils for engineering purposes based on laboratory determination of particle-size characteristics, liquid limit, and plasticity index and shall be used when precise classification is required.


Atterberg limits; classification; clay; gradation; gravel; organic soils; particle-size distribution; sand; silt; soil classification; soil tests; USCS

ASTM D2487 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM D2487 standard.

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