For the purposes of this Regulation, the definitions and abbreviations set out in this article shall apply:

‘lot’ means an identifiable quantity of food delivered at one time and determined by the competent authority to have common characteristics, such as origin, variety, species, catch area, type of packing, packer, consignor or markings;

‘sublot’ means a physically separated and identifiable part of a large lot, designated to apply the sampling method;

‘incremental sample’ means a quantity of material taken from a single place in the lot or sublot;

‘aggregate sample’ means the combined total of all the incremental samples taken from the lot or sublot;

‘laboratory sample’ means a representative part or quantity of the aggregate sample intended for the laboratory;

‘comparable size or weight’ means a difference in size or weight that does not exceed 50 %;

‘precision’ means the closeness of agreement between independent test results obtained under stipulated conditions. Precision is expressed as the standard deviation or coefficient of variation of the test results;

‘within laboratory reproducibility or intermediate precision (RSD R )’ means precision under a set of within-laboratory conditions in a specific laboratory;

‘limit of quantification (‘LOQ’)’ means the lowest content of the analyte which can be measured with reasonable statistical certainty, i.e. the lowest concentration or mass of the analyte that has been validated with acceptable accuracy by applying the complete analytical method and identification criteria;

‘combined standard measurement uncertainty (‘u’)’ means a non-negative parameter associated with the result of measurement, which characterises the dispersion of values that could reasonably be attributed to the measurand based on the information used. It is obtained using the individual standard measurement uncertainties associated with the input quantities in a measurement model;

‘expanded measurement uncertainty (‘U’)’ means the value which is obtained using a coverage factor of 2 which gives a level of confidence of approximately 95 % (U = 2u);

‘trueness’ means the closeness of agreement between the average value obtained from a large series of test results and an accepted reference value. This value can be estimated from regular analysis of certified reference materials, fortification experiments or participation in inter-laboratory studies and is expressed as apparent bias.

COMMISSION IMPLEMENTING REGULATION (EU) 2022/1428 of 24 August 2022 laying down methods of sampling and analysis for the control of perfluoroalkyl substances in certain foodstuffs ANNEX