4. Durability
After an appropriate test, taking into account the period of time estimated by the manufacturer, has been performed, the following criteria shall be satisfied: The variation of the measurement result after the durability test when compared with the initial measurement result for the flow rates in the range Q_(t) to Q_(max)- shall not exceed the measurement result by more than 2 %. The error of indication after the durability test shall not exceed twice the MPE in point 2. The variation of the measurement result after the durability test when compared with the initial measurement result shall not exceed one-third of the MPE in point 2. The error of indication after the durability test shall not exceed the MPE in point 2.
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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.