Standard

SAE AS4059F

May 2020 Withdrawn

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Language English

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Abstract

This SAE Aerospace Standard (AS) defines contamination classes and levels for particulate contamination of hydraulic fluids and includes methods of reporting related data ( Appendix A ). The contamination levels selected are based on the widely accepted NAS 1638 cleanliness classes. The conversion from NAS 1638 cleanliness class specifications to AS4059 class specifications is defined. The comparison of the NAS 1638 classes to AS4059 classes and levels is provided and are defined and the differences explained ( Appendix B ). NAS 1638 classes based on weight of particles are not applicable to these classes and are not included. A contamination code has been added to describe the contamination levels of the fluid at the specified particle size ranges.

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Standard from SAE International
Published: May 5 2020
Withdrawn: November 22 2022
Document type: IS
Pages
ISBN:

Publisher: SAE International
Distributor: SAE International

Product Relations

Replaced by: SAE AS4059G
Refers: SAE AS598
Replaces: SAE AS4059E
Refers: SAE ARP5376

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Version history History (2)

SAE AS4059F

SAE AS4059E

Abstract

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