The simultaneous measurement of pH, chloride and electrolytic conductivity in soil suspensions
Abstract
The measurements of pH, chloride and electrolytic conductivity have been simplified and made simultaneous for suspensions of soil in water through the use of a triple electrode system mounted in a single unit. A glass electrode and a silver-silver chloride electrode with a common reference electrode and two pH meters are used for the determination of pH and chloride, respectively. Electrolytic conductivity is measured by an ohm-meter principle using silver electrodes. The outputs of the three meters are recorded on a three-pen recorder with electrically independent channels. The pH, over the range 0 to 10, is read from the chart while the values for chloride and electrolytic conductivity are obtained from graphs or tables. Once the instruments are set up they need little adjustment during the day.
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