AASHTO T 289-91 (2018) PDF Download

The AASHTO T 289-91 (2018) standard is titled "Standard Method of Test for Determining pH of Soil for Use in Corrosion Testing." This standard provides procedures and apparatus for determining the pH value of soil using a pH meter. The purpose of this test is to complement soil-resistivity measurements and identify conditions that may significantly increase metal corrosion in the soil.

The standard is divided into two parts. The first part outlines the process of obtaining and preparing the soil sample for testing. This involves ensuring the sample is of the appropriate size and condition for accurate pH measurement.

The second part of the standard details the actual test method for determining the pH of the soil. This method utilizes a pH meter, which allows for precise and reliable pH measurements. By determining the pH of the soil, this testing method can help assess the potential for corrosion of metals in the soil.