jrc79301_report%20eu-rl%20pahs%20pt%20on%20chocolate%202012_ver11

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m/m % Figure 7: Graphical presentation of distribution fat contents reported for the chocolate test material. 67.0 66.0 65.0 64.0 63.0 62.0 61.0 60.0 59.0 58.0 57.0 56.0 55.0 54.0 53.0 52.0 51.0 50.0 49.0 48.0 47.0 Sample: Plain chocolate Measurand Fat content No. of laboratories: 45 1025 6026 6019 1009 1023 1005 1027 6021 1022 1030 1002 1016 1015 6011 6006 6002 6020 1018 6017 1029 6013 6001 1013 6018 1004 6024 6003 6014 1010 1028 6022 1020 6010 1008 1012 6008 1001 6007 6012 1011 1014 6015 1007 1017 6004 Laboratory Assigned value: 54.900 µg/kg (Reference value) PROLab Plus Assigned value 28
9.4 6Evaluation of compliance with legislation The characteristics of the methods applied by participants and the results reported are listed in ANNEX 7 and ANNEX 8 respectively. Compliance with legislation was evaluated on basis of requirements set in Regulation (EC) No 333/2007 as amended by Regulation (EU) No 836/2011 [7]. Non compliant values for LOD, LOQ, and recovery are indicated by bold red font. In general the number of non-compliances was similar for OCLs and for NRLs. The major shortcoming concerned LODs and LOQs that were higher than the tolerated 0.3 µg/kg and 0.9 µg/kg, respectively. The values for recovery complied with the limits specified in Commission Regulation (EU) No 836/2011. However, it cannot be evaluated whether recovery was understood as yield, as requested, and not as apparent recovery, which might be indicated by recovery values close to 100 %. Consequently all participants reporting method performance characteristics that do not comply with the minimum performance characteristics specified in legislation shall identify and implement for their analysis methods possibilities for improvement, or shall apply a different, more appropriate analysis procedure. 10 Follow-up actions for underperforming laboratories All laboratories that got "questionable" or "non-satisfactory" performance ratings are urged to perform root cause analysis, and to implement corrective actions. The NRLs not reporting were already contacted for explanation. The EU-RL will set up follow-up measures in due time for all NRLs that received for at least one of the four PAHs (BAA, BAP, BBF, and CHR) z-scores > 3 as required by Regulation (EC) 882/2004, and by the "Protocol for management of underperformance in comparative testing and/or lack of collaboration of National Reference Laboratories (NRLs) with European Union reference laboratories (EU-RLs) activities". These laboratories shall perform as an immediate action root-cause-analysis, and shall report to the EU-RL PAH in writing the identified cause for their underperformance and corrective actions they are going to take. Additionally, they shall participate to an independent (non-EU-RL) proficiency test on the determination of PAHs in food and shall communicate the outcome of this exercise to the EU-RL PAH. 9B 29
Page 1 and 2: Report on the 10 th inter-laborator
Page 3 and 4: Report on the 10 th inter-laborator
Page 5 and 6: 1 Summary This report presents the
Page 7 and 8: 3 Scope As specified in Regulation
Page 9 and 10: Table 3: List of participating Offi
Page 11 and 12: The stability of the test material
Page 13 and 14: 8 Design of the proficiency test Th
Page 15 and 16: Figure 1 and Figure 2 provide overv
Page 17 and 18: Table 8: Compilation of z-scores ca
Page 19 and 20: Table 9: Compilation of z-scores ca
Page 21 and 22: Table 10: Compilation of z-scores c
Page 27: Table 13: Compilation of z-scores c
Page 31 and 32: 13 References 1 EU, COMMISSION REGU
Page 33 and 34: ANNEX 1: Announcement of the PT on
Page 36 and 37: Confirmation of participation 36
Page 38: ANNEX 4: Documents sent to particip
Page 43: GUIDANCE FOR REPORTING 43
Page 48 and 49: ANNEX 5: Technical specifications o
Page 50: ANNEX 6: Homogeneity of the test ma
Page 54: ANNEX 7: Questionnaire and method p
Page 58 and 59: continued: 58
Page 68 and 69: Method performance data reported by
Page 70 and 71: Method performance data reported by
Page 72 and 73: Results reported by NRLs for the co
Page 74 and 75: µg/kg Distribution of individual r
Page 76 and 77: Results reported by OCLs for the co
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Results reported by NRLs for the co
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µg/kg Distribution of individual r
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Results reported by OCLs for the co
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Results reported by OCLs for the su
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Results reported by OCLs for the fa
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As the Commission’s in-house scie
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