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This document is the Intellectual Property of SGS AXYS Analytical Services Ltd. and contains Proprietary and Confidential Business <br />Information. It may not be reproduced or distributed without written permission of the owner. © SGS AXYS Analytical Services Ltd, 2020. <br />SGS AXYS Analytical Services Ltd, 2045 Mills Road W., Sidney, BC, Canada, V8L 5X2. Tel. (250) 655-5800, fax (250) 655-5811. <br />This is not a controlled document; it is subject to change without notification. <br /> <br />SGS AXYS Analytical Services Ltd. <br /> <br />MSU-110 Rev 14, 28-May-2020 Summary of MLA-110 Rev 02 Ver 07 Page 13 of 23 <br />SGS AXYS confidential, not to be distributed without written permission <br />QC Specifications for Aqueous, Solid, AFFF, Tissue and Blood/Serum Samples: <br />Procedural Blank Levels and OPR Recovery Ranges <br />Compound <br />Procedural <br />Blank Level <br />(ng/sample) <br />OPR Recovery <br />Range for Aqueous, <br />Solid and AFFF Samples <br />(%) <br />OPR Recovery <br />Range for <br />Tissue Samples <br />(%) <br />OPR Recovery <br />Range for Blood/ <br />Serum Samples <br />(%) <br />PFBA ≤ 1.6 70-130 70-130 70-130 <br />PFPeA ≤ 0.8 70-130 70-130 70-130 <br />PFHxA ≤ 0.4 70-130 70-130 70-130 <br />PFHpA ≤ 0.4 70-130 70-130 70-130 <br />PFOA ≤ 0.4 70-130 70-130 70-130 <br />PFNA ≤ 0.4 70-130 70-130 70-130 <br />PFDA ≤ 0.4 70-130 60-130 70-150 <br />PFUnA ≤ 0.4 70-130 70-140 70-140 <br />PFDoA ≤ 0.4 70-130 70-130 70-140 <br />PFTrDA ≤ 0.4 70-130 70-130 70-130 <br />PFTeDA ≤ 0.4 70-130 70-130 70-130 <br />PFBS ≤ 0.4 70-130 60-130 70-130 <br />PFPeS ≤ 0.4 70-130 70-130 70-130 <br />PFHxS ≤ 0.4 70-130 70-130 70-130 <br />PFHpS ≤ 0.4 70-130 70-130 70-130 <br />PFOS ≤ 0.4 70-130 70-140 70-130 <br />PFNS ≤ 0.4 70-130 60-150 40-140 <br />PFDS ≤ 0.4 70-130 40-150 70-130 <br />PFDoS ≤ 0.4 60-130 70-140 70-130 <br />4:2 FTS ≤ 1.6 70-130 40-150 70-130 <br />6:2 FTS ≤ 5 70-130 70-130 70-130 <br />8:2 FTS ≤ 1.6 70-130 70-170 70-130 <br />PFOSA ≤ 0.4 70-130 70-130 70-130 <br />N-MeFOSA ≤ 0.4 70-130 50-140 70-130 <br />N-EtFOSA ≤ 0.4 70-130 70-130 70-130 <br />N-MeFOSAA ≤ 0.4 70-130 60-140 70-150 <br />N-EtFOSAA ≤ 0.4 70-130 60-140 60-130 <br />N-MeFOSE ≤ 4 70-130 70-150 70-130 <br />N-EtFOSE ≤ 4 70-130 70-130 70-160 <br />HFPO-DA ≤ 1.6 70-130 70-130 70-130 <br />ADONA ≤ 1.6 70-130 70-130 70-130 <br />9Cl-PF3ONS ≤1.6 70-130 70-130 60-130 <br />11Cl-PF3OUdS ≤ 1.6 70-130 60-130 70-130 <br /> <br />www.axysanalytical.com <br />Page 18 of 94