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D2487-17e1 Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
D2488-17e1 Standard Practice for Description and Identification of Soils (Visual-Manual Procedures)
D3282-15 Standard Practice for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
D4427-23 Standard Classification of Peat Samples by Laboratory Testing
D4452/D4452M-22 Standard Practice for X-Ray Radiography of Soil Samples
