Initial Assessment: The instrument is first assessed to determine its current performance and identify any discrepancies from the desired specifications. Standard Comparison: The instrument's readings are compared against a known standard. This standard is traceable to international standards to ensure global consistency. Adjustment: If discrepancies are found, the instrument is adjusted accordingly to align with the standard. This may involve tweaking the software or hardware components. Documentation: A detailed report is generated, documenting the calibration process, findings, and any adjustments made.