Determination of the pH value and oxidation-reduction potential in soil samples

The pH value and the oxidation-reduction potential (ORP) of soil give important information about its properties. Knowledge of these values allows to make predictions concerning plant growth, bacterial activity, fertilizers that may be needed, possible corrosive effects on buildings, mobility, etc.

Here, the determination of the pH value is describes according to ISO 10390 and DIN EN 15933. The oxidation-reduction potential determination is carried out in a suspension.