Sch 6 para 20
(1) Where an automatic catchweigher is marked with a temperature range, it must not be used for trade in temperatures outside that range. (2) Where an automatic catchweigher 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. (3) An automatic catchweigher of accuracy class Y(b) must only be used for weighing ballast or waste. (4) An automatic catchweigher must not be used for trade in circumstances— (a) in which it may be prevented from operating consistently or accurately; or (b) which are likely prematurely to degrade its metrological characteristics. (5) For the purposes of paragraph (3), “ 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.