ANNEX VU.K.METHODS OF ANALYSIS TO CONTROL UNDESIRABLE SUBSTANCES IN FEED
[B. DETERMINATION OF THE LEVELS OF DIOXINS (PCDD/PCDF) AND PCBs U.K.
CHAPTER III U.K. Sample preparation and requirements for methods of analysis used in offical control of the levels of non dioxin-like PCBs in feed
10. Reporting of the results U.K.
10.1.The analytical results shall contain the levels of the individual non-dioxin-like PCBs and the sum of those PCB congenersreported as lower-bound, upper-bound and medium-bound in order to include a maximum of information in the reporting of the results and thereby enabling the interpretation of the results according to specific requirements.U.K.
10.2.The report shall include the method used for the extraction of PCBs.U.K.
10.3.The recoveries of the individual internal standards shall be made available in case the recoveries are outside the range referred to in point 7, in case the maximum level is exceeded and in other cases upon request.U.K.
10.4.As the expanded measurement uncertainty is to be taken into account when deciding about the compliance of a sample, that parameter shall also be made available. Thus, analytical results shall be reported as x +/– U whereby x is the analytical result and U is the expanded measurement uncertainty using a coverage factor of 2 which gives a level of confidence of approximately 95 %.U.K.
10.5.The results shall be expressed in the same units and with at least the same number of significant figures as the maximum levels laid down by [the CMU Regulations].]U.K.