MP Filtri ACMU, User Manual

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Appendix D
28 SAE AS4059 REV.E Cleanliness Classification For Hydraulic . . .
SAE AS4059 REV.E Cleanliness
Classification For Hydraulic Fluids
II
This SAE Aerospace Standard (AS) defines cleanliness levels for particulate
contamination of hydraulic fluids and includes methods of reporting data re-
lating to the contamination levels. Tables 1 and 2 below provide the Max-
imum Contamination Limits (Particles/100ml) of differential and cumula-
tive particle counts respectively for counts obtained by an automatic particle
counter, e.g. ACMU.
II
The information reproduced on this and the previous page is a brief extract from SAE AS4059
Rev.E, revised in May 2005. For further details and explanations refer to the full Standard.