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D3740-19 Standard Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
D5255-15 Standard Practice for Certification of Personnel Engaged in the Testing of Soil and Rock
D5522-99a Standard Specification for Minimum Requirements for Laboratories Engaged in Chemical Analysis of Soil, Rock, and Contained Fluid (Withdrawn 2004)
