(1) Notwithstand ing anyth ing con tained in any o the r law or any custom, usage or practic e, no un it of mass or measure, other than the sta ndard weigh ts or measures shall b e used in any tran sac tion for tra de or commerce or any dea ling or contr act or for any work to be done or goods to be sold or delivered in any are a or class of goods or undertakin gs in respect of which this Act has come into force.
(2) Any custom, usage, practic e or method of wh ate ver na tu re which permits in any trade , a trader, seller o r buyer to dema nd, receive or cause to be dem and ed or received any qu an tity of ar tic le in excess of, or less t ha n, the qu an tity fixed by the weight or measure by which the contr ac t or dea ling in respect of the said arti cle has been mad e, shall be void.
Any tran saction , dea ling cr contr act made or had afte r the exp iry of six mon ths from the commen cem ent of this Act shal l, in so fa r as i t cont ravenes the provisions of sub-section (1), be void.