Meaning
Formal verification process ensuring that machinery continues to operate within specified tolerances after substantial changes or time intervals. Most quality management systems require equipment re-qualification after a machine is moved, repaired, or subjected to a major software update. This procedure involves repeating a subset of the original installation and operational qualification tests to ensure consistency.
Verification of the mechanical and electronic state confirms that components have not drifted from their intended position.
Trigger Condition
Scheduled intervals based on risk assessment often dictate the frequency of this activity even in the absence of physical changes. A factory might conduct equipment re-qualification every two years for high precision assets to satisfy audit requirements. Major shifts in the production environment, such as a change in ambient temperature or humidity, can also necessitate a new round of testing.
The goal is to identify wear or degradation before it affects the final product quality.
Protocol Execution
Testing steps are defined in a written plan that includes calibration checks and load tests. Successful equipment re-qualification requires the machine to produce output that falls within the established statistical process control limits. Results are compared against historical data to identify any negative trends in performance.
Documentation Integrity
Documentation must be maintained for the life of the asset. Each report for equipment re-qualification must be signed by the technical lead and the quality manager to be considered valid during a regulatory inspection.