Minor repair is the process of quickly and economically returning an unserviceable item to serviceable condition by doing simple work using parts that are in stock in the calibration lab. Examples include replacement of batteries, fuses, or lamps; or minor cleaning of switch contacts; or repairing a broken wire; or replacing one or two in-stock components. The need for repair may be indicated by the results of a calibration. For calibratable items, minor repair is always followed by calibration of the item. Passing the calibration test indicates success of the repair. Minor repairs are defined as repairs that take no longer than a short time as defined by laboratory management, and where no parts have to be ordered from external suppliers, and where substantial disassembly of the instrument is not required. Contrast with: calibration (1), repair