Browse Standards AS4059D
Historical REVISED 2001-04-01

Aerospace Fluid Power - Cleanliness Classification for Hydraulic Fluids AS4059D

This SAE Aerospace Standard (AS) defines cleanliness levels for particulate contamination of hydraulic fluids and includes methods of reporting data relating to the contamination levels. The contamination levels selected are an extension of the widely accepted NAS 1638 cleanliness levels.
AS4059F
2020-05-05
Latest
Reaffirmed
AS4059E
2011-03-18
Historical
Reaffirmed
AS4059D
2001-04-01
Historical
Revised
AS4059C
2000-08-01
Historical
Revised
AS4059B
1995-03-01
Historical
Revised
AS4059A
1990-03-30
Historical
Revised
AS4059
1988-06-14
Historical
Issued

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