K

Kinematic Viscosity

The ratio of the absolute viscosity to the density

at the temperature of the viscosity

measurement. The metric units of kinematic

viscosity are the stoke and centistoke, which

correspond to the poise and centipoise of

absolute viscosity.


I

ILMA

Independent Lubricant Manufacturers

Association

ILSAC

International Lubricants Standardization &

Approval Committee

Inhibitor

A substance in a petroleum product which

prevents or retards undesirable chemical

changes from taking place in the product, or in

the condition of the equipment in which the

product is used. Commonly used inhibitors are

used to prevent or retard oxidation or corrosion.

Initial Boiling Point

According to ASTM Method D 86, the recorded

temperature when the first drop of liquid falls

from the end of the condenser.

Ink Oil

Any of the petroleum oils used as carriers for

the pigment used in making printing inks.

Insulating Oil

An oil used in circuit breakers, switches,

transformers and other electrical apparatus for

insulating, and/or cooling. In general, such oils

are well-refined petroleum distillates of low

volatility, with resistance to oxidation and

sludging.

IP

Institute of Petroleum

ISO

International Standards Organization

This organization which is worldwide in scope

sets standards and classifications for lubricants.

An example is the ISO viscosity grade system