Sch 6 para 13 Minimum measured quantity
(1) A measuring system must not be used to measure quantities of liquid fuel delivered from a road tanker that are less than the minimum measured quantity but this paragraph does not apply where— (a) a measurement is made to determine payments in respect of any customs or excise duty; or (b) a frustrated delivery has taken place and all reasonable precautions have been taken and all due diligence has been exercised to avoid a frustrated delivery. (2) In sub-paragraph (1)(b), “ frustrated delivery ” means a delivery of liquid fuel from a road tanker which cannot be completed because— (a) there is insufficient space in the buyer's storage tank; (b) continuing the delivery would result in contamination of the liquid fuel or the mixing of different types of liquid fuel; or (c) a component of the meter measuring system breaks down.