A
abrasive particles:
particle liable to change the surface finish
active component:
component that may induce circulation in the fluid or may be activated by the fluid circulation during operation
for instance: cylinder, injector, pump, valve, ...
agglomerate:
assembly of two or more particles which are in intimate contact and cannot be seperated by stirring
ambient contamination:
contaminants that are found in the atmosphere surrounding the component originating from the atmosphere, operators or from objects in contact with the component
APC:
automatic light extinction particle counter