TO 42B2-1-12
Air Force Standard for Particulate Contamination

1.1 This is applicable to all military aircraft hydraulic systems, airborne hydraulic equipment, and related hydraulic servicing.

1.2 The class of contamination is based upon the total number of particles in any size range per 100 mL of hydraulic fluid. Exceeding the allowable particle count in any one or more size range requires that the next higher class level be assigned.

REAL Services          700 Portage Trail            Cuyahoga Falls, OH            44221.3057

voice: 330.630.3700        fax: 330.630.3733

© 1995-2017 REAL Services_®  All Rights Reserved