Browse Standards AS598
Historical ISSUED 2012-01-19

Aerospace Microscopic Sizing and Counting of Particulate Contamination for Fluid Power Systems AS598

This SAE Aerospace Standard (AS) defines the materials, apparatus and procedure for sizing and counting of particulate contamination, 5 µm or greater, in hydraulic fluid samples by membrane filtration with microscopic counting.
The microscopic counting method is capable of counting particulate matter in samples withdrawn from fluid power systems as identified by the 12 classes of AS4059 and projected beyond these for the five standard ranges specified and can thus serve as the primary document to determine acceptability.
It is also capable of revealing but not measuring evidence of abnormal amount of water, other fluids, fine particulate and other materials, especially fibers and metals.
It is applicable to all military, civil, space vehicles and test equipment.
AS598A
2018-07-24
Latest
Revised
AS598
2012-01-19
Historical
Issued

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks offer a customized subscription plan that lets you pay for just the documents that you need, when you need them.

Get Involved

Want to participate in updating this standard?

X