Inhibitors are additives that prevent rust, corrosion and foaming. Over time, these substances are consumed and their contents should be monitored regularly — especially in coolants and water-based liquids.
The assay quantifies the amount of active inhibitors through chemical reaction or spectroscopy.
The customer will be told whether the liquid still has sufficient protection, or if the inhibitor package has been used up and the fluid needs to be post-treated or replaced.