General
Pour point of a petroleum oil is an index of the lowest teniperature of its utility for certain applications. The cloud point (Test Method D 2500) is usually higher than the pour point.
Precision
- Repeatability: 3°C
- Reproducibility: 6°C
Test
After preliminary heating, the sample is cooled at a specified rate and examined at intervals of 3 ° C for flow characteristics. The lowest temperature at which the movement of the oil is observed is recorded as the pour point,