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    Standards Related to D4648 - D4648/D4648M

    D2487-17e1

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

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    Developed By: Committee D18 on Soil and Rock

    D6758-18e1

    Standard Test Method for Measuring Stiffness and Apparent Modulus of Soil and Soil-Aggregate In-Place by Electro-Mechanical Method

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    Developed By: Committee D18 on Soil and Rock

    D7100-11(2020)

    Standard Test Method for Hydraulic Conductivity Compatibility Testing of Soils with Aqueous Solutions

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    Developed By: Committee D18 on Soil and Rock

    D6572-21

    Standard Test Methods for Determining Dispersive Characteristics of Clayey Soils by the Crumb Test

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    Developed By: Committee D18 on Soil and Rock

    D1140-17

    Standard Test Methods for Determining the Amount of Material Finer than 75-μm (No. 200) Sieve in Soils by Washing

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    Developed By: Committee D18 on Soil and Rock

    D6539-13

    Standard Test Method for Measurement of the Permeability of Unsaturated Porous Materials by Flowing Air

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    Developed By: Committee D18 on Soil and Rock