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CBP Task 12 Page A.1 of A.1 December 2010 APPENDIX A: Quality Assurance Plan 6.0 APPENDICES 6.1 APPENDIX A: QUALITY ASSURANCE PLAN All sample characterization data was obtained consistent with the requirements as specified in U.S. EPA Quality Assurance Project Plan as described in Kosson et al., Appendix B [1]. Data quality indicator goals for critical measurements in terms of accuracy, precision and completeness are shown in Table 6-1. Table 6-1. Data Quality Indicator Goals Measurement Method Accuracy Precision Completeness As, Se, Pb, Cd, Co, Al, Ba, B, Mo, Sb, Tl, and Cr Concentration ICP-MS/6020 10% 10% >90% Hg Concentration CVAA/7470A/7473 10% 10% >90% Anions, Sulfate, Carbonates, Chlorides IC/SW-846 9056A 10% 10% >90% pH, conductivity, ORP Electrode 2% 2% 100% Carbon Content DIC/DOC EC/OC 10% 10% >90% Surface Area BET ASTM D6556-09 5% 5% >90% Loss on Ignition (LOI) ASTM D7348-08 2% 2% 100% Moisture ASTM D2216-05 1% 10% 100% Accuracy will be determined by calculating the percent bias from a known standard. Precision will be calculated as relative percent difference (RPD) between duplicate values and relative standard deviation (RSD) for parameters that have more than two replicates. Completeness is defined as the percentage of measurements that meet DQI goals of the total number measurements taken. REFERENCES 1. Kosson, D.S., Sanchez, F., Kariher, P., Turner, L.H., Delapp, R., and Seignette, P. “Characterization of Coal Combustion Residues from Electric Utilities – Leaching and Characterization Data”. USEPA, EPA-600/R-09/151, 2009.
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