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Regulation 5 Reference meters

Original text. Later amendments are not shown.

(1)

Reference meters shall be tested either—

(a)

by means of a local or working standard capacity measure which is of sufficient size to hold at least one minute’s delivery of the meter under test; or

(b)

by means of a weighing machine which can weigh at least one minute’s delivery of the meter under test.

(2)

The capacity measure or the weighing machine used to test a reference meter shall have a discrimination threshold of not less than 0.01 per cent. of the quantity delivered by the meter under test.

  • In a test under paragraph (1)(b) above, the density of the test liquid shall be determined to an accuracy of 0.01 per cent.