10. (1) The Government shall cause to be prepared as many sets of such standards of measure specified in sub section (1) of section 8 or multiples or sub multiples thereof, to be called reference standards, as it may consider expedient and shall cause the measure of each such set to be authenticated as having been ascertained from the primary units of measure. (2) The reference standards shall be kept in such place and in such condition as may be specified by the authorised person.