DurabilityU.K.
This section has no associated Explanatory Memorandum
7.—(1) A meter measuring system shall be designed to maintain an adequate stability of its metrological characteristics over a period of time estimated by the manufacturer, provided that it is properly installed, maintained and used according to the manufacturer's instruction when in the environmental conditions for which it is intended.
(2) After an appropriate test, taking into account the period of time estimated by the manufacturer, has been performed, the following criterion shall be satisfied; the variation of the measurement result after the durability test, when compared with the initial measurement result, shall not exceed the value for meters specified in line B of Table 2 set out in paragraph 16.