has part has_specified_output planned process assay calibration A planned process with the objective to establish the relationship between data produced by a measurement device and physical qualities. This is done by using the measurement device under defined conditions, and either tuning it to adjust the measured output, or record the output and use it as a reference in future measurements. GROUP: OBI Philly workshop WEB:http://en.wikipedia.org/wiki/calibration calibration the process of using pH buffer adjust a pH meter measurement device ready for release