ISO 7170:2005 specifies test methods for determining the strength and durability of storage units that are fully assembled and ready for use, including their movable and non-movable parts. The tests consist of the application, to various parts of the unit, of loads, forces and velocities simulating normal functional use, as well as misuse, that might reasonably be expected to occur. The test results are only valid for the unit/component tested. These results may be used to represent the performance of production models provided that the tested model is representative of the production model. Tests carried out according to ISO 7170:2005 are intended to demonstrate the ability of the item to give satisfactory service in its intended environment. The tests have been developed for units/components that have not been in use. However, when properly justified, they may be used for fault investigation. Assessment of ageing and degradation is not included.