(1) The maximum permissible error in relation to the commodities shall be SUCll as is indicated in the First Schedule.
(2) While establishing the maximum permissible error in relation to the net quantity of commodities contained in packages, due account shall be taken of the following causeswhich may lead to variation in quantity, namely:-
(a) variations caused by unavoidable deviation in weighing, measuring or counting the contents of individual packagesthat may occur in good packaging practice;
(b) variations caused by the ordinary and customary exposure to conditions, such as, climate, transport, storage or the like that normally occur in good distribution practice after the commodity is introduced in trade or commerce;
and
(c) variations due to the nature of packagingmaterial or container.
(3) The Director or Controller or the Legal Metrology officer shall determine, or cause to be determined, in relation to any commodity, the declaration in respect of the net quantity of which is permitted to be qualified by the words 'when packed'; the reasonable variations which may take place by reason of the environmental conditions.