SAE AS4059B

Aerospace - Cleanliness Classification for Hydraulic Fluids.

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Standard:
  • AS4059
  • Revision: B
Revised:
  • 1995-03-01
Revision:
  • Historical. Access the latest revision: AS4059F
Issuing:
  • A-6c1 Contamination And Filtration Committee
Scope:

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 and simplification of the widely accepted NAS 1638.

History:
StandardPublishedRevisionStatus
AS4059F2013-09-27LatestRevised
AS4059E2005-05-02HistoricalReaffirmed
AS4059D2001-04-01HistoricalRevised
AS4059C2000-08-01HistoricalRevised
AS4059B1995-03-01HistoricalRevised
AS4059A1990-03-30HistoricalRevised
AS40591988-06-14HistoricalIssued
AKA:
  • SAE AS 4059
Sector:
  • Aerospace
Topic:
  • Lubricant contamination
  • Fluid power systems
  • Hydraulic systems
  • Hydraulic fluids
  • Safety
  • Tests and Testing

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