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f <br /> iSUPERIOR ANALYTICAL LABORATORY INC. <br /> 825 ARNOLD, STE 2 • MARTINEZ, CALIFORNIA 94553 • (415) 229-1512 <br /> iIM <br /> iC E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY NO. 80434 DATE RECEIVED 01/05/90 <br />' CLIENT Vapor Extraction Technology DATE REPORTED 01/09/90 <br /> CLIENT ,TOB NO . <br />' ATR ANALYSTS by NIOSH 1500 FOR TOTAL HYDROCARBONS <br /> & AROMATIC VOLATILE ORGANICS <br />' LAB # 8 <br /> SAMPLE SB-3 <br />' Analyte Vol .- ( L ) Front ( mg ) Back( mg ) Tot- ( mg ) ( mg/m3 ) ( ppm ) <br /> Benzene 10 <0 009 <0 009 <0 009 <0 9 c0 3 <br />' Toluene 10 <0 009 <0 009 <0 . 009 <0 9 <0 . 2 <br /> Ethvl Benzene 10 <0 009 <0 . 009 <0 009 <0 9 <0 2 <br /> Xvlenes 10 <0 009 <0 009 <0 009 <0 9 <0 2 <br />' Total Hydrocarbon 10 <0 1 e0 1 <0 1 V10 - --- <br />' Method Deter t i on Limit BTEk-0 009 mg <br /> TPH-0 1 mg <br />' QAQC Summar <br />' MS/MSD Average Recovery = 93% Duplicate RPD = 0 <br /> IEdward Morales <br /> ahoai an r <br /> SAN FRANCISCO MARTINEZ <br /> OUTSTANDING QUALITY AND SERVICE <br />