6.1. Requirements for laboratory analyses U.K.
Where the operator needs to carry out laboratory analyses for determining properties (including moisture, purity, concentration, carbon content, biomass fraction, net calorific value, density) of products, materials, fuels or waste gases, or for establishing correlations between parameters for the purpose of indirect determination of required data, the analyses shall be carried out in accordance with Articles 32 to 35 of Regulation (EU) No 601/2012, using an approved sampling plan for ensuring that samples are representative for the batch to which they relate. Where Annex VII to Regulation (EU) No 601/2012 does not provide an appropriate minimum frequency of analyses for a particular product, material or fuel, the operator shall propose a suitable analysis frequency for approval by the competent authority based on information on the heterogeneity of the product, material or fuel.