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�, -- -:Emeco <br /> �'� A Coming Cnmp+np <br /> duplicate tests by {relative Percent Cifference <br /> ~ , Precision is measured using <br /> (RPD) as in: <br /> recover test 2 X 100 <br /> ►a RPD s f'/, recoye test 1 %' �-- <br /> (% recovery test 1 + �e recovery test are/based an the average <br /> Control limits far accuracy (percent dardvecovdev <br /> '-' + 3 standard deviation units. Control limits <br /> historical percent recovery /- range from 0 (identical <br /> relative percent difference percent <br /> for precision ( to the aderage, historical relative p° <br /> �.� duplicate DC5 results) Sor limits are set, with the <br /> difference + 3 standard deviation units. gases Where there is not <br /> enough historical data, EPA limits o <br /> E� approval of the Quality Assafance department. <br /> !� lY Anal sis Results <br /> shed EPA v <br /> include minor modifications of Publi <br /> limits are adjustedstoh <br /> Test methods ma, i arameter lists, Reporting <br /> rj as reporting limits at p <br /> le, when.apprnpriate. Solid and.r��sie samples <br /> de for <br /> reflect dilution of the samp ,I i+e., no correction 1 { �sts that <br /> are reported on an "as received basis, <br /> moisture contents eUnless the method requires nr the client <br /> such correction b . <br /> s <br /> Results are on the attached data sheets, <br /> E [ <br /> Y <br /> Fr. <br /> 17 <br /> T f <br /> tt T <br /> Y <br /> t <br /> { <br /> 1. <br /> 1 <br /> t=1 <br /> ws <br /> 4 r <br /> �1 <br />