| OELCHECK test equipment: | Mettler-Toledo S230 Conductivity Meter |
| Sample quantity: | 20 ml |
| Unit: | µS/cm |
| Test result: | electric conductivity |
| Result range: | 0,001 µS/cm - 1000 mS/cm |
| Analysis for: | coolants |
| Brief description: | The electric conductivity is measured with an especially suitable electrode. It describes the ability of a solution to conduct electricity. It is a sum parameter for dissolved and dissociated substances like salts. The higher the electric conductivity, the higher the proportion of dissolved salts in the coolant. |
| Statement: | The conductivity is a decisive parameter for non-inhibited coolant systems in conjunction with the pH value and the oxygen content (O2 only measurable on-site) to evaluate the corrosion tendency. For inhibited coolants, the conductivity plays a minor role, since inhibitors from the surface of the material stop the corrosion. However, a change can be a hint on mixture or additive decomposition. |
| Underlying test standard: | OELCHECK test method OPM 109 |
