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January 19, 2018 Lab ID : STK1830190 <br />Steris Corporation Customer :3-18091 <br />Quality Control - Inorganic <br />Constituent I Method I Date/ID 1 1'Ype I Units I Conc. I QC Data I DQO I Note 1 <br />_inc 3010 01/17/18:200586AMB Blank mg/L ND <0.02 <br />LCS mg/L 0.8000 96.5% 85-115 <br />MS mg/L 0.8000 181 % 75-125 435 <br />(CH 1870322-001) MSD mg/L 0.8000 124% 75-125 <br />MSRPD mg/L 0.8000 37.3% X0.0 435 <br />PDS mg/L 0.8000 98.4% 75-125 <br />Definition <br />PDS PDS failed, matrix - Post Digestion Spike (PDS) not within Acceptance Range (AR) because of matrix interlcrences affecting this <br />analyte. Data was accepted based on the LCS recovery. <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 />LCS 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 are 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 recoveries <br />are an indication of how that sample matrix affects analyte recovery. <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 />1)OO Data Quality Objective -'I'his is the criteria against which the L.Mlllty control data is compared. <br />Explanation <br />435 Sample matrix may he affecting this analyte. Data was accepted based on the LCS or CCV recovery. <br />Page 7 of 7 <br />