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Pore size distribution
| Oil glossary |
The ratio of the number of effective holes of a given size to the total number of effective holes per unit area expressed as a percent and as a function of hole size.
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Pour point, английский
- Lowest temperature at which an oil or distillate fuel is observed to flow, when cooled under conditions prescribed by test method astm d 97. the pour point is 3°c (5°f) above the temperature at which the oil in a test vessel shows no movement when the container is held horizontally for five seconds.
- Of a fuel oil, nominally the temperature three degrees c above which the fuel will just flow under its own weight. a measure of the low temperature flow characteristics of a fuel,
- A widely used low-temperature flow indicator, depicted as 5°f above the temperature to which a normal liquid petroleum product maintains fluidity. it is a significant factor in cold-weather start-up.
- Lowest temperature at which a liquid petroleum product will flow when it is cooled under the conditions of the standard test method.
- (astm d-97) the lowest temperature at which a lubricant will pour or flow under specified conditions.
- Температура металла при разливке
Polyolefin, английский
A polymer derived by polymerization of relatively simple olefins. polyethylene and polyisoprene are important polyolefins.
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