Specifications

ContaminationSensor CS 1000 Cleanliness classes - brief overview
HYDAC FILTER SYSTEMS GMBH
en(us)
Page 99/112
BeWa CS1000 3764916 300 en-us 2012-08-29.doc 2012-08-29
Definition acc. to SAE
Particle count (absolute) larger than a defined particle size
Example: Cleanliness class according to AS 4059: 6
The maximum permissible particle count in the individual size ranges is bold-faced
in the table on page 98.
Cleanliness
class acc. to AS 4059= 6 B
Size B particles may not exceed the maximum number indicated for code 6: 6 B =
max. 19,500 particles > 5 µm in size
Specifying a cleanliness code for each particle size
Example: Cleanliness class according to AS 4059=7 B / 6 C / 5 D
Cleanliness class Max. particles / 100 ml
Size B ( > 5 µm / > 6 µm
(c)
) 38,900
Size C ( >15 µm / >14 µm
(c)
) 3460
Size D ( >25 µm / > 21 µm
(c)
) 306
Specifying highest measured cleanliness class
Example: Cleanliness class according to AS 4059= 6 B – F
The 6 B – F specification requires a particle count in size ranges B – F. The
respective particle concentration of cleanliness class 6 may not be exceeded in any
of these ranges.