Regular instrument calibration is essential to maintain instrument accuracy. Calibration is the process of configuring an instrument to provide a result for a sample within an acceptable range. It is also necessary to record the post and pre-calibration data to monitor and evaluate the performance of the instrument/sensor. This information can then be used to determine when replacement or service exchange sensors are required.
GAS quality systems operate in accordance with the requirements of ISO/IEC 17025. ISO 17025 is a quality management system for test and calibration laboratories.
This provides traceability of measurement to recognised national standards, and to units of measurement realised at the National Physical Laboratory.