This SAE Aerospace Standard 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.
| SAE International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | AS4059 |
| Product Name | AEROSPACE-CLEANLINESS CLASSIFICATION FOR HYDRAULIC FLUIDS |