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WG2597236 QUALITY CONTROL SUMMARY <br /> Mercury by Method 7471B L1895744-01 <br /> Method Blank (MB) <br /> (MB)R4272022-1 09/11/2512:33 Cp <br /> MB Result MB Qualifier MB MDL MB RDL PC <br /> Analyte mg/kg mg/kg mg/kg <br /> Mercury U 0.0206 0.0400 <br /> 3 <br /> qS <br /> Laboratory Control Sample (LCS) <br /> Rn <br /> (LCS)R4272022-2 09/11/2512:35 <br /> Spike Amount LCS Result LCS Rec. Rec.Limits LCS Qualifier <br /> s <br /> Analyte mg/kg mg/kg % % Sr <br /> Mercury 0.500 0.488 97.6 80.0-120 <br /> L1895433-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) <br /> (OS)L1895433-03 09/11/2512:38•(MS)R4272022-4 09/11/2512:43•(MSD)R4272022-5 09/11/2512:53 7G1 <br /> Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec.Limits MS Qualifier MSD Qualifier RPD RPD Limits <br /> Analyte mg/kg mg/kg mg/kg mg/kg % % % % % $AI <br /> Mercury 0.500 0.107 0.540 0.572 86.5 93.0 1 75.0-125 5.85 20 <br /> Fc <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895744 09/23/25 10:17 23 of 53 <br />