(1) The basic unit of weight shall be the kilogram.
(2) In order to determine the value of the kilogram, Government of Nepal shall arrange for the preparation of a national standard and have this standard kilogram authenticated through verification with the international
proto-type or with the national proto-type of a foreign country which has been prepared according to the international proto-type. Such standard shall be kept at the place and in the custody of the person prescribed by
Government of Nepal.
(3) Notwithstanding anything contained in Sub-Section (1) and Section 8B, the basic unit of volume in respect to precious stones shall be the carat, that is, the 1/500th part of a kilogram.
(4) The standard unit of weight at some place shall be the weight of the volume of the basic unit thereof.