7.1.1.
The effect of an electromagnetic disturbance on a water meter shall be such that: the change in the measurement result is no greater than the critical change value as defined in point 7.1.3, or the indication of the measurement result is such that it cannot be interpreted as a valid result, such as a momentary variation that cannot be interpreted, memorised or transmitted as a measuring result.
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Source: EUR-Lex (Cellar) · retrieved 2026-11-06 · Text as adopted (Official Journal); later amendments are not incorporated in this text.