These guidelines relate to the need for periodical or continuous understanding of the GCl conditions with the relevant parameters to be measured, the analyses to be performed, the means and the diagnostic systems to be adopted.
The reference contexts and the objectives to be attained are integrated into the primary objective of checking, testing and monitoring the GCl lines, improving the reliability and the availability of the installations, supporting the maintenance interventions, reducing failures and bringing down the total costs of maintenance and management.
Lastly, the tests to be performed and the data in question cover not only the needs relating to behaviour conditions of the operating GCl but also the requirements regarding the putting into service of new lines or the certification of their interoperability performance.