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~~~ Laboratories, Inc. <br />Batch A distinct set of samples analyzed at a specifc time <br />Fountl Value of the DC Type of interest <br />Limit Upper limit far RPD, in %. <br />Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg) <br />MDL Method Detection Limit. Same as Minimum Reporting Limit Allows for instrument and annual fluctuations. <br />PCNISCN A numher assignetl to reagents/standards tc trace to the manufacturefs certificate of analysis <br />PQL Practical Quantitation Limit, typically S limes the MDL. <br />QC True Value of the Control Sample or the amount added to the Spike <br />Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg) <br />RPD Relative Percent Difference, calculation used For Duplicate QC Types <br />Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg) <br />Sample Value of the Sample of interest <br />AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample -Water Duplicate <br />ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank <br />CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix <br />CCV Continuing Calivation Verifcation standard LFMD Laboratory Fortifed Matrix Duplicate <br />DUP Sample Duplicate LRB Laboratory Reagent Blank <br />ICB Initial Calibation Blank MS Matrix Spike <br />/CV Initial Calibation Verifcation standard MSD Matdx Spike Duplicate <br />1CSAB toter-element Carecfion StandaM - A plus B solutions PBS Prep Blank -Soil <br />LCSS Laboratory Control Sample -Soil PBW Prep Blank -Water <br />LCSSD Laboratory Control Sample -Soil Duplicate PQV Practical Quantitation Verification standard <br />LCSW Laboratory Control Sample -Water SDL Serial Dilution <br /> <br /> <br />Blanks Verifies that there is no or minimal contamination in the prep method or calihration procedure. <br />Control Samples Verifes the accuracy of the method, including the prep procedure. <br />Duplicates Verifes the precision of the instrument antl/or method. <br />Spikes/FOnified Matrix Determines sample matrix interterences, if any. <br />Standard Verifies the valitlity of the calibration. <br />B Analyte concentration detected at a value between MDL and PQL. <br />H Analysis exceeded method hold time. DH is a Fleld test with an immediate hold time. <br />R Poor spike recovery accepted because the other spike in the set fell within the given limits. <br />T High Relative Percent Difference (RPD) accepted because sample concentrations are less than 10x the MDL. <br />U Analyte was analyzed for but not detected a[ the indicatetl MDL <br />V High hlank data acceptetl because sample concentration is t0 times higher Shan blank concentration <br />W Poor recovery far Silver quality control is accepted because Silver often precipitates with Chloride. <br />X Qualify control sample is out of control. <br />Z Poor spike recovery is accepted because sample concentration is four times greater than spike concenl2lion. <br />REPIN03.11,00.01 <br />L50701: Page 9 of l5 <br />