Water content measured as a percentage provides a rougher but more effective indication of how much free water is present in the oil sample. This analysis is typically used in systems where there is a risk of water ingress in larger quantities, such as in gearboxes or hydraulic systems with leaks.
Centrifugation or separation methods measure the proportion of water that separates from the oil, providing a quick overview.
The customer receives an assessment of whether the oil is still in usable condition, or whether immediate measures such as filtration, water separation or oil change are needed.