This procedure will be generally applicable to three classes of hydraulic components as listed below:

Class A - Motors, Pumps, Actuators, Accumulators, Reservoirs, and Non-metering Valves

Class B - Servo Valves and Metering Valves

Class C - Special short Life Duration Components

These recommendations are written to cover the following six main categories:

1. Test Circuit (Paragraph 3).

2. Test Procedure (Paragraph 4).

3. Calibration (Paragraph 5).

4. Contamination Test (Paragraph 6).

5. Type and Amount of Contaminant (Paragraph 7).

6. Method of Measuring Contaminant (Paragraph 8).