GSO EN 14154-4:2025
EN 14154-4:2023
Gulf Standard
Current Edition
·
Approved on
14 October 2025
Water meters - Part 4: Additional functionalities
GSO EN 14154-4:2025 Files
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GSO EN 14154-4:2025 Scope
This document specifies definitions, requirements and testing of additional functionalities for water meters, without metrological impact, in combination with Additional Functionality Devices (AFD) and in response to EU/EFTA Mandate M/441 EN. These AFDs are considered as “ancillary devices” as defined in EN ISO 4064-1:2017 and EN ISO 4064-4:2014.
This document does not cover the changing of metrological software within the meter or the upload/download of metrological software.
NOTE A manufacturer can claim compliance only for additional functionalities described in this document. It is not mandatory that an AFD complies with all additional functionalities described herein.
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