Annual Calibration Program


In accordance with the provisions of par. 2 of article 25 of the Metering Regulation (Government Gazette B '4818 / 24.12.2019) the frequency of Regular Calibrations is determined by the Annual Calibration Program of the Operator, that concerns the annualy scheduled calibrations at the active Delivery Points.

For the year 2024, EDA THESS will proceed with scheduled calibrations of meters with Qmax ≤ 10 Nm3/h, that have been used for more than 10 years, according to the standard ISO 3951-1:2013 "Sampling procedures for inspection variables”, Part 1: Specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL", as well as in scheduled calibrations of volume correctors (PTZ).