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April 2, 2008 Lab ID : STK0832459 <br /> Pilkington Customer : 3-2715 <br /> Quality Control - Inorganic <br /> Constituent Method Datdm Type Uniffi Cone. QC Data DQO Note <br /> Dentition <br /> ICV :Initial Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> ICB :Initial Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <br /> CCV :Continuing Calibration Verification- Analyzed to verify the instrument calibration is within criteria. <br /> CCB :Continuing Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> IES :laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. <br /> MS :Matrix Spikes-A random sample is spiked with a known amount of analyte. The recoveries arc an indication of how that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted. The <br /> recoveries are an indication of how that sample matrix affects analyte recovery. <br /> Du :Duplicate Sample-A random sample with each batch is prepared and analyzed in duplicate. The relative percent difference is an <br /> P indication of precision for the preparation and analysis. <br /> MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> ND :Non-detect-Result was below the DQO listed for the analyte. <br /> DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Explalnadom <br /> 360 :CCV above Acceptance,Range(AR). SMgles which were non detect for this anala were ace. <br /> ST KO$32459:Quality Control Page 4 of 4 <br />