4.1.1 Procedure I - General vibration. This procedure uses standard laboratory vibration exciters (shakers), slip tables, and fixtures. Choose the specific exciters to be used based on: a. the size and mass of test items and fixtures; b. the frequency range required; c. the force, acceleration, velocity, and displacement required. 4.1.2 Procedure II - Loose cargo transportation. Simulation of this environment requires use of a package tester (Annex C, Figure 514.6C-4) that imparts a 25.4 mm (1.0 inch) peak-to-peak, circular synchronous motion to the table at a frequency of 5 Hz. This motion takes place in a vertical plane. The figure shows the required fixturing. This fixturing does not secure the test item(s) to the bed of the package tester. Ensure the package tester is large enough for the specific test item(s) (dimensions and weight).