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i <br /> Vo0wanterra <br /> Environmental <br /> ServICes <br /> DUPLICATE CONTROL SAMPLE REPORT <br /> Air Toxics <br /> project 115782 <br /> Category TO-3-BTEX Method TO-3 BTEX <br /> Matrix AIR <br /> QC Lot 08 NOV 95-A5 Date Analyzed 08 NOV95 <br /> Concentration Units- ppmv <br /> Concentration Accuracy Precision <br /> Analyte Spiked - Measured _ Average (*) (RPD) - <br /> DCS1 Qual DCS2 Qual AVG DCS Limits DCS Limit <br /> Benzene 0 400 0.329 0 320 0 324 81 80-120 2 8 20 <br /> Toluene 0 400 0 376 0 367 0 372 93 80-120 2 4 20 <br /> Category TO-3-TVPH Method TO-3 - TVPH <br /> Matrix AIR <br /> QC Lot 08 NOV 95-A5 Date Analyzed 08 NOV 95 <br /> Concentration Units ppmv <br /> Concentration Accuracy Precision <br /> Analyte Spiked Measured Average (t) (RPD) <br /> DCS1 Qual DCS2 Qual AVG DCS Limits DCS Limit <br /> TVPH as Gasoline 9 19 7 70 8 25 7 98 87 80-120 6 8 20* <br /> Category ASTM-D1946 Fixed Gases (ASTM-D1946) <br /> Matrix AIR <br /> _QC Lot — 09 NOV 95-A1 - - Date Analyzed 09 NOV 95 <br /> Concentration Units - v) T - <br /> --- ----- -- - — -- - --Concentration-- ---- -- — Accuracy-----Precision <br /> te -- <br /> AnalySpiked Measured _ A_ve_rage (�) (RPD) <br /> -- - -- = - -_-—_ -_---- — ----- --—-DCS1 ual DCS 2 = <br /> Q'i QualT AVG _ -DCS- �;zmits -- DCS I;imit <br /> Methane 0 0100 0 00894 0 00840 0 00867 87 80-120 6 2 20 <br /> Carbon dioxide 10 0 10 1 10 1 10 1 101 80-120 0 0 20 <br /> Calculations are performed before rounding to avoid round-off errors -n calculated results <br />