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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 21 of 23 <br />SGS AXYS confidential, not to be distributed without written permission <br />Appendix B: Sample Storage Conditions <br />Sample Storage Requirements <br />Matrix Sample Size <br /> (per analysis) <br />Sample <br />Container 1 <br />Sample <br />Condition <br />Upon Receipt <br />Storage <br />Condition 2 <br />Sample <br />Hold <br />Time 3 <br />Extract Hold <br />Time 4 Preservation <br />Aqueous <br />Up to 1000 mL, <br />but typically 500 <br />mL or less <br />(max. 50 mg solids) <br />High density <br />polyethylene <br />(HDPE) <br />0-4°C, dark ≤ -20ºC, <br />dark 90 days 30 days None <br />Required <br />Solvent <br />extracts <br />Typically <br />0.75 mL <br />High density <br />polyethylene <br />(HDPE) <br />0-4°C, dark 0-4°C, <br />dark 60 days 30 days None <br />Required <br />Solid <br />Up to 5 g dry <br />but not more <br />than 10 g wet. <br />High density <br />polyethylene <br />(HDPE) <br />0-4°C, dark ≤ -20ºC, <br />dark 1 Year 30 days None <br />required <br />Biosolid <br />Up to 0.5 g dry <br />but not more <br />than 5 g wet. <br />High density <br />polyethylene <br />(HDPE) <br />0-4°C, dark ≤ -20ºC, <br />dark 1 Year 30 days None <br />required <br />Tissue Up to 2 g (wet) <br />High density <br />polyethylene <br />(HDPE) or <br />amber glass jar <br />0-4°C, dark ≤ -20ºC, <br />dark 1 Year 30 days None <br />Required <br />AFFF Up to 0.02 g <br />High density <br />polyethylene <br />(HDPE) <br />Room <br />temperature. <br />0-4°C, <br />dark 90 days 30 days None <br />Required <br />Whole <br />Blood 5 or <br />Serum6 <br />Up to 2 mL <br />HDPE or Glass, <br />not <br />polypropylene. <br />0-4°C, dark ≤ -20ºC, <br />dark 1 Year 30 days None <br />Required <br />1 HDPE containers are preferred; amber glass containers are also acceptable. All containers should <br />be organically clean; i.e. solvent-rinsed or purchased ‘certified’ clean. All containers should be <br />tightly sealed with screw cap lids. <br />2 Storage temperatures quoted are nominal temperatures. <br />3 Hold times are from time of sampling. Client negotiated requests for specific holding times or <br />other method-specific holding times are adhered to. This 90-day holding time on freezing of <br />aqueous samples is based on SGS AXYS storage stability studies. <br />www.axysanalytical.com <br />Page 26 of 94