This document presents the results of the research carried out in response to the questions posed by task 2.2 of WP2 of the THOTH2 project. In the following, we will present:
- Methodologies in order to investigate the aging on selected devices based on the assessment of the accuracy modification over a large period exposed to H2.
- Metrological protocol for lab comparisons with various devices under defined conditions.
These will be presented for different categories of devices, namely gas meters, pressure transmitters, water dew point analysers, flow computers and leak detectors.
