SPSFAM Heavy Metals ERP Book

AOAC FIRST ACTION 2015.01

MULTI LABORATORY TEST

precision determination reported a RSD(r) value of 5.71 and a RSD(R) value of 13.7. Both precision results meet the requirements of the SMPR. Mercury: All data was considered for the precision determination excluding the non-numeric LOQ results. The 10 labs used for the precision determination reported an overall mean of 4.53 which is below the SMPR requirement of 10 µg/kg. Lead: Lab 2, 4, 9 and 11 results were excluded from the precision determination for not meeting the SMPR recovery requirement of 60-115%. The 9 labs used for the precision determination reported a RSD(r) value of 13.1 and a RSD(R) value of 13.1. Both precision results meet the requirements of the SMPR.

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