(1) The secondary standard items, designs and details shall be in accordance with F-1 category of International Organization of Legal Metrology (OIM L.) Recommendation No. 20 or in accordance with Schedule-2 and shall be in charge and at the place of the officer designated by the Controller of that Standard. will remain.
(2) The secondary standard maintained in accordance with sub-rule (1) shall be checked every 5 years by the officer designated in the same sub-rule and shall keep a record with the unit quantity of that standard in accordance with sub-section (2) of section 17 of the Act.
(3) …………