29.—(1) Where any goods are required by or under this Order to be sold only by quantity expressed in a particular manner—
(a)it shall be a sufficient compliance with that requirement in the case of any sale of, or agreement to sell, any such goods if the quantity of the goods expressed in the manner in question is made known to the buyer before the purchase price is agreed;
(b)no person shall be guilty of an offence under Article 20(1) by reason of the exposing or offering for sale of such goods at any time if both the quantity of the goods expressed in the manner in question and the price at which they are exposed or offered for sale are made known at that time to any prospective buyer.
(2) For the purposes of this Order and any instrument made under it, without prejudice to any other method of making known to a person the quantity of any goods expressed in a particular manner, that quantity shall be deemed to be made known to that person—
(a)if the goods are weighed or otherwise measured or counted, as the case may require, in the presence of that person; or
(b)if the goods are made up in or on a container marked with a statement in writing of the quantity of the goods expressed in the manner in question and the container is readily available for inspection by that person; or
(c)upon such a statement in writing being delivered to that person.
(3) Where the Department by order provides that this paragraph is to apply, in the case of such goods in such circumstances as are specified in the order, to any requirement so specified of, or of any instrument made under, this Order with respect to the making known to the buyer of the quantity by weight of such goods sold by retail, then, in any case to which the order applies, that requirement shall be deemed to be satisfied if the goods are bought at premises at which weighing equipment of such description as may be prescribed—
(a)is kept available by the occupier of those premises for use without charge by any prospective buyer of such goods for the purpose of weighing for himself any such goods offered or exposed for sale by retail on those premises; and
(b)is so kept available in a position on those premises which is suitable and convenient for such use of the equipment; and
(c)is reserved for use for that purpose at all times while those premises are open for retail transactions,
and a notice of the availability of the equipment for such use is displayed in a position on the premises where it may be readily seen by any such prospective buyer.
(4) For the purposes of this Order and any instrument made under it, a person shall not be deemed to weigh or otherwise measure or count any goods in the presence of any other person unless he causes any equipment used for the purpose to be so placed, and so conducts the operation of weighing or otherwise measuring or counting the goods, as to permit that other person a clear and unobstructed view of the equipment, if any, and of the operation, and of any indication of quantity given by any such equipment as the result of that operation.