7.
| (1) The Minister may, for the purposes of procure such derivative standards of the Sri Lanka standard, to be known as reference standards and place such standards in the custody of the Director, Every such reference standard shall be calibrated by comparison with a Sri Lanka standard or at a specified standard laboratory by a standard method. |
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| (2) Every reference standard shall be calibrated In the laboratory at least once in every five years, after its first calibration, on a direction issued by the Director. |
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| (3) The Minister may by notification published in the Gazette, declare that a reference standard of any unit of measurement procured under subsection (1), shall be brought into use in Sri Lanka and such reference standard shall be deemed to be true and accurate until the contrary is proved. |
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Sri Lanka Consolidated Acts