The number to indicate the stability (consistency) of the oil viscosity with temperature. The lighter the number the more stable the oil is.
Related Terms |
ALKALINE BOIL-OUT
Employed to remove oil and grease deposits from heating surfaces.
|
BULK CARGO
Cargo such as oil, coal, ore, woodchips, etc. not shipped in bags or containers
|
HYDROFINISHING
A process for treating raw extracted base stocks with hydrogen to saturate them for improved stability.
|
OILING SPLASH SYSTEM
Method of lubricating moving parts by agitating or splashing oil in the crankcase.
|
EMULSIFIER
Additive that promotes the formation of a stable mixture, or emulsion, of oil and water. Common emulsifiers are: metallic soaps, certain animal and vegetable oils, and various polar compounds.
|
CLOUD POINT
The temperature at which waxy crystals in an oil or fuel form a cloudy appearance.
|
CORROSION INHIBITOR
Additive for protecting lubricated metal surfaces against chemical attack by water or other contaminants. There are several types of corrosion inhibitors. Polar compounds wet the metal surface preferentially, protecting it with a film of oil. Other compounds may absorb water by incorporating it in a water-in-oil emulsion so that only the oil touches the metal surface. Another type of corrosion inhibitor combines chemically with the metal to present a non- reactive surface.
|
CARBON RESIDUE
Coked material remaining after an oil has been exposed to high temperatures under controlled conditions.
|
% CORREL
The percentage of peaks in the used oil infrared spectrum which match those in the reference oil. A sudden decrease in this value usually means that the oil was mixed with a different type.
|
ANTI-FOAM AGENT
Additive used to reduce foaming in petroleum products: silicone oil to break up large surface bubbles, and various kinds of polymers that decrease the amount of small bubbles entrained in the oils.
|
