Resistivity, pH, Sulfates and Chloride Ion Content in Soils
Perform soil resistivity tests in accordance with Tex-129-E, or AASHTO T288. Perform pH test of soils in accordance with Tex-128-E, or AASHTO T289. Perform water-soluble Sulfate Ion or Chloride Ion content in soils in accordance with Tex-620-J, or AASHTO T290 and AASHTO T291, respectively.