Vibration tests to see how the unit will fare during shipment. The standard shipment methods are truck, rail, air, and ship. When designing packaging, keep in mind how the unit will be loaded and shipped using each of these methods. Pallets can be incorporated into boxes for larger products to allow for forklift use. These same pallets can be modified so that they can be tied down during shipment.
Compression occurs when boxes are stacked in the warehouse.
Testing may determine how many boxes can be stacked without damaging the bottom-most box. When testing, consider whether the boxes will be stacked properly so that weight is distributed properly, or whether the warehouse may stack the boxes so that the upper box may be offset from the lower box. When considering temperature, consider the extremes of cold and heat. Units should be tested both in on and off modes. Items to be checked following temperature testing include solder joints, airflow, rust, white salts that may form, and proper fan operation.