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WG2597751 QUALITY CONTROL SUMMARY <br /> Metals (ICP) by Method 6010D L1895603-03 <br /> L1895603-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) <br /> (OS)L1895603-03 09/11/2515:38•(MS)R4272279-4 09/11/2515:42•(MSD)R4272279-5 09/11/2515:43 Ed <br /> Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec.Limits MS Qualifier MSD Qualifier RPD RPD Limits PC <br /> Analyte mg/I mg/I mg/I mg/I % % % % % <br /> Antimony 9.00 ND 9.01 8.58 99.3 94.5 9 75.0-125 4.88 20 <br /> Arsenic 9.00 ND 9.09 8.62 101 95.8 9 75.0-125 5.31 20 FS <br /> Barium 9.00 0.250 9.27 8.71 100 94.0 9 75.0-125 6.20 20 <br /> Beryllium 9.00 ND 8.88 8.66 98.5 96.2 9 75.0-125 2.40 20 Rn <br /> Cadmium 9.00 ND 8.87 8.31 98.6 92.4 9 75.0-125 6.48 20 <br /> Chromium 9.00 0.240 9.31 8.79 101 95.0 9 75.0-125 5.83 20 <br /> Cobalt 9.00 ND 8.93 8.38 98.9 92.8 9 75.0-125 6.29 20 FSr <br /> Copper 9.00 ND 9.06 8.64 101 96.1 9 75.0-125 4.65 20 <br /> Lead 9.00 0.187 9.12 8.56 99.2 93.1 9 75.0-125 6.26 20 <br /> Molybdenum 9.00 0.0793 9.22 8.69 102 95.7 9 75.0-125 5.90 20 <br /> Nickel 9.00 0.365 9.29 8.72 99.1 92.9 9 75.0-125 6.26 20 <br /> Selenium 9.00 ND 9.02 8.48 100 94.3 9 75.0-125 6.07 20 7G1 <br /> Silver 1.80 ND 1.72 1.65 95.8 91.5 9 75.0-125 4.57 20 <br /> Thallium 9.00 ND 9.00 8.51 100 94.6 9 75.0-125 5.56 20 <br /> Vanadium 9.00 ND 8.75 8.57 97.3 95.2 9 75.0-125 2.09 20 $AI <br /> Zinc 9.00 10.9 19.8 18.6 98.1 85.4 9 75.0-125 5.96 20 <br /> Fc <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 28 of 53 <br />