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fa SUPERIOR ANALYTICAL LABORATORY INC. <br /> 825 ARNOLD,STE.2• MARTINEZ,CALIFORNIA 94553=(415)229-1512 <br /> w+ <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> w <br /> ! , LABORATORY NO. : 80434 DATE RECEIVED: 01/05/90 <br /> CLIENT: Vapor Extraction Technology DATE REPORTED: 01/09/90 <br /> ��• CLIENT JOB NO. : <br /> s <br /> AIR ANALYSIS by NIOSH 1500 FOR TOTAL HYDROCARBONS <br /> & AROMATIC VOLATILE ORGANICS <br /> i � <br /> LAB «: 4 <br /> "• SAMPLE: SA-4 <br /> t—r <br /> Analyte Val. (L) Front(mg) Back(mg) Tot. (mg) (mg/m3) (ppm) <br /> ------ ------- --------- -------- ------ ------- ----- <br /> 4 Benzene 10 <0.009 <0.009 <0.009 <0. 9 <0.3 <br /> Toluene 10 <0.009 <0.009 <0.009 <0.9 <0.2 <br /> Ethyl Benzene 10 <0.009 <0.009 <0.009 <0.9 <0. 2 <br /> Xylenes 10 <0.009 <0.009 <0.009 t0.9 <0,2 <br /> Total Hydrocarbon 10 0. 1 <0. 1 0. 1 10 - --- <br /> Method Detection Limit BTEX-0.009 mg <br /> TPH-0. 1 mg <br /> QAQC Summary: <br /> MS/MSD Average Recovery = 93%: Duplicate RPD = 0 <br /> Eduard R.1Mora s <br /> �-�o� 'Cory�*ansger <br /> SAN FRANCISCO MARTINEZ <br /> t OUTSTANDING QUALITY AND SERVICE <br />