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Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> fiVolatile Organic Compounds <br /> L,•r Laboratory' Control Sample <br /> r QC Batch#: SMS000418 Date analyzed: 04/18/00 <br /> Matrix: Solid Spiked Sample: Blank Spike <br /> Units: PgAg <br /> PARAMETER Method# SA SR SP SP SPD SPD RPD QC LIMITS � <br /> µg/kg µmg µmg %R µmg %R RPD <br /> 1,1-Dichloroethene ; 8240/8260 ; 25 ND 1 22.1 1 88 21.6 ; 86 1 2.3 1 25 1 65-135 <br /> 1Benzene 1 8240/8260 1 25 1 ND 1 25.3 1 101 1 25.4 1 102 1 0.4 1 25 1 65-135 ; <br /> ;Trichloroethene 8240/8260 25 ND 25.0 100 24.7 99 1.2 25 65-135 <br /> ,Toluene ' ' ' ' ' ' ' ' ' <br /> ' 1 8240/8260 1 25 1 ND 1 25.0 1 100 1 25.4 1 102 1 1.6 1 25 1 65-135 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 <br /> 1Chlorobenzene , 8240/8260 1 25 1 ND 1 25.0 100 1 25.1 100 0.4 1 25 65-135 , <br /> 1 1 1 1 1 1 1 <br /> 1.SG170gQl2S <br /> 'Toluene-d8 8240/8260 105% ' 98% ' ' 101% ' ' 65-135 <br /> 1Dibromofluoromethane 1 8240/8260 1 1 101% 1 96% 1 1 98% 1 1 1 1 65-135 <br /> 14-Bromofluorobenzene 1 ° ° o 65-135 1 <br /> 8240/8260 1 1 99/0 1 95/0 1 1 97% 1 1 1 1 <br /> 11,2-Dichloroethane-d4 1 8240/8260 1 1 109% 1 97% 1 1 97% 1 1 1 1 65-135 1 <br /> i <br /> Definition of Terms: <br /> na: Not Analyzed in QC batch <br /> SA: Spike Added <br /> SR: Sample Result <br /> RPD(%): Duplicate Analysis-Relative Percent Difference <br /> SP: Spike Result <br /> SP(%R): Spike%Recovery <br /> SPD: Spike Duplicate Result <br /> SPD(%R): Spike Duplicate%Recovery <br /> rNC: Not Calculated <br /> Iw i <br />