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: <br /> SUPERIOR ANALYTICAL LABORATORY INC. <br /> 825 ARNOLD,STE.2• MARTINEZ,CALIFO11NIA 94553•(415)229-1512 <br /> t : <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> jz LABORATORY NO. : 80,13.1 DATE l2ECCIVED: 01/05/90 <br /> CLIENT: Vapor Extraction Technology DATE REPORTED: 01/09/90 <br /> CLIENT JOB NO. : <br /> AIR ANALYSIS by NIOSH 1500 FOR TOTAL HYDROCARBONS <br /> & AROMATIC VOLATILE ORGANICS <br /> LAB 7 <br /> .W SAMPLE: SB-2 <br /> Analyte Vol- (L) Front(mg) Back(mg) Tot. 1mg ) (mg/m3} (ppm) <br /> ' Benzene 10 0.012 <0.009 0.012 1 .2 0. 38 <br /> _ Toluene 10 0. 18 <0.009 0. 18 18 4 .8 <br /> Ethyl Benzene 10 0.027 <0.009 0.027 2.7 0.62 <br /> Xylenes 10 0. 13 <0.009 0. 13 13 3,0 <br /> Total Hydrocarbon 10 3.4 <0. 1 3.4 340 --�-- <br /> M9 <br /> Method Detection Limit BTEX--0.009 mg <br /> Do TPH-0. 1 mg <br /> AAQC Summary: <br /> 'L <br /> MS/MSD Average Recover-y = 93%: Duplicate RPB = 0 <br /> V <br /> Edward R. Morales <br /> a'or L'o y mil IagL� <br /> SAN FRANCISCO MARTINEZ <br /> ti OUTSTANDING QUALITY AND SERVICE <br />