Step 1. Calibrate the shock machine as follows:a. Mount the calibration load to the test apparatus in a configuration similar to that of the actual test item. Use a fixture similar in shape and configuration to the shock attenuation system that will support the materiel in its shipping container. The fixture should be as rigid as possible to prevent distortion of the shock pulse input to the test item. If the test apparatus input waveform is to be compensated via input/output impulse response function, exercise care to details in the calibration configuration and the subsequent processing of the data.b. Perform calibration shocks until two consecutive shock applications to the calibration load reproduce waveforms that are within the test tolerance specification.Step 2. Remove the calibration load and install the actual test item on the shock apparatus.Step 3. Perform a pre-shock operational test of the test item. If the test item operates satisfactorily, proceed to Step 4. If not, resolve the problems and repeat this step.Step 4. Subject the test item to the test pulse.Step 5. Record necessary test data to include test setup photos, test logs, and photos of the actual test pulse from a transient recorder or storage oscilloscope.Step 6. For classical trapezoidal shock waveform, repeat Steps 3, 4, and 5once in each direction for three orthogonal axes with positive and negative polarity (six shocks total). For a complex shock waveform, repeat Steps 3, 4, and 5 once in each of the three orthogonal axes (three shocks total).Step 7. Perform a post shock operational test of the test item. See paragraph 5 for analysis of results. Document the results, including plots of the measured test response waveforms and any pre- or post-shock operational anomalies.