solid matter that is removable in specific conditions and possessing mechanical cohesion

particle count:

number of particles counted by their size, nature or other characteristic

particle size:

size of particle as defined by the longest dimension

particle size analysis:

measurement of the size of a particle according to a specified procedure and measuring method

particle size distribution:

cumulative or differential number of particles as a functiobn of particle size

passive component:

component that does not cause circulation in the fluid and is not activated by the fluid
for instance: connector, tube, tank, ...

pressure rinsing:

extraction method using an appropriate jet of extraction liquid under pressure to spray and/or flush the controlled surface