Sch 4 para 1 Restrictions on use of instruments for trade
(1) An instrument marked with a weighing range may be used for trade for determining the weight of any item by ascertaining the difference between two weights (both of which fall within the weighing range). (2) Save in accordance with paragraph (1) above, a person must not use for trade regulated non-automatic weighing instrument marked with a weighing range for determining a weight outside that range in relation to— (a) articles made from, gold, silver, platinum or palladium; (b) precious stones or pearls; or (c) drugs or other pharmaceutical products. (3) A person must not use for trade any regulated non-automatic weighing instrument other than an instrument of accuracy classification Class I or Class II within the meaning of paragraph 2 of Schedule 6 in any transaction relating— (a) to, or to articles made from, gold, silver, platinum or palladium; (b) to precious stones or pearls. (4) Where a regulated non-automatic weighing instrument bears a mark which signifies the manner and purpose of use, it must not be used for trade in a manner or for a purpose which does not accord with that marking. (5) A person must not use a Class IIII regulated non-automatic weighing instrument (within the meaning of paragraph 2 of Schedule 6 ) for trade for any purpose other than for weighing— (a) any of the materials to which the expression “ballast” applies in Schedule 4 to the Weights and Measures 1985 Act; (b) any material the disposal of which constitutes a landfill disposal as defined in paragraph (2) of section 70 of the Finance Act 1996 , whether or not the disposal amounts to a taxable disposal as defined in section 40 of that Act; or (c) waste not falling within paragraph (b). (6) A person must not use for trade any regulated non-automatic weighing instrument for the purpose of multiple weighing, that is to say, determining the mass of a load by totalling the results of more than one static weighing operation during each of which the load is only partially supported by the load receptor. (7) For the purposes of this paragraph, “ waste ” means any substance that its holder, discards, or intends or is required to discard, including any waste disposed of for reprocessing or recycling purposes.