Three types of contamination:
Solid
Liquid
Gas
Sources of contamination:
Built-in contamination
Ingressed contamination
Internally generated contamination
Built in contamination
Contamination from the manufacture
Ingressed Contamination
Contamination from the environment
Internally generated contamination
Created within the system by moving parts
Effects of Contamination:
Abrasion Erosion Adhesion Fatigue Cavitation Corrosion Aeration