With a rapid modernization of trade and industry all over the world, the off take of packaged commodities has received an impetus because of the ease with which they can be transported and marketed. When any commodity, which is sold by weight and measure, is put in a package, it become difficult for the consumer to ascertain the weight or measure of the net contents of the package because he/she has no means to weigh or measure such contents unless he /she has opened the package or adopted other means to ascertain the net contents.