Specifies the density of the oil at ( ) as its standard density.
The viscosity property of oil that changing with temperature is often referred to ( ).
The viscosity of a gas increases with pressure ( ).
Paraffin-based crude oil contains more alkanes with low viscosity and good viscosity-temperature properties and ( ).
Viscosity of the liquid ( ) as the pressure increases.
The storage safety of diesel is denoted by ( ).
When determining the flash point of diesel oil, it is often measured as ( ).
The ( ) index of light diesel oil is specified according to the requirements of safety and fire prevention.
In determining the flash point of gasoline, it measures ( ).
Under certain test conditions, when the oil is cooled to a certain temperature, and the tube of oil storage is tilted 45° angles, and after 1 minute, the naked eye can not see the position of the liquid surface in the tube has moved, the highest temperature of this phenomenon is called the ( ) of the oil.
The lowest temperature at which oil can flow out of a standard type container is ( ).
Depressurized distillate to control ( ) when doing lubricating oil.
Control the ( ) of diesel to avoid the loss of fluidity due to crystallization of wax in diesel during winter or when the air temperature is lowered to a certain extent.
Bubble point temperature is the ( ) temperature at which the liquid is heated until the first bubble appears at constant pressure.
Increase the temperature of the mixed liquid under a certain pressure to vaporize it, when the first bubble appears in the mixed liquid, and the gas phase and liquid phase keep in balance and begin to boil, then the temperature is called ( ).
