1. Calibration method

AVAPs are calibrated using the gravimetric method described in ISO 8655-6 . The method is based on determining volume at a temperature of 20°C by weighing pure water, under defined environmental conditions.

The mass of the liquid volume is determined from the indication of a weighing instrument, taking air buoyancy into account, and is converted into volume by the density of water. In this way, metrological traceability of the volume is achieved by using...