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Calculation of RPD <br /> :.'.� for BP Oil QA/QC Program <br /> BP Oil Station 11195 9/05/96 Event <br /> Analytical TPNg Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Data <br /> Primary Sample 530 ND<0,5 ND<1.0 ND<1.0 ND<1.0 ND<10 <br /> QC-1 Duplicate 110 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 <br /> Sample 320 n/a n/a n/a n/a n/a <br /> Mean <br /> RPD 131.25% n/a n/a n/a n/a n/a <br /> Significant YES n/a n/a n/a n/a n/a <br /> Result? <br /> Notes: <br /> (1) Significance is defined as an RPD greater than 30%(or less than-30) <br /> (2) "A negative"RPD will result if the value of the Primary Sample Result is smaller than QC-1 <br /> The determination of Significant Result is not affected by sign of RPD <br /> f:lq pro4\BPoi ISR PD-QaQC.WQ2 <br />