Calibration and EQA-Schemes are two different quality assurance tools.

Calibration ensures that measuring devices function correctly and are traceable to recognised references – however, it only assesses the device itself.

An EQA-Scheme evaluates the entire measurement process, including:

• Measurement methods
• Devices
• Laboratory staff
• Workflows

EQA-Schemes show whether a laboratory delivers reliable results under real working conditions.