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T <br /> op <br /> , .4Ncya'�a <br /> _ <br /> Mzm <br /> NR - <br /> TABLE 4 CQCENTR `I'IONS OF HYDROCARBON CONSTITUENTS 1N,50I VAPOR AT EXXON RS 7-1050, <br /> 909 W. HA1OfE{t.LANE, STOMION CALIFORNIA 22:DECEMBER 1987. <br /> Total .. <br /> Volatile <br /> Peaks Prior" Ethyl- Hydro- <br /> Sa�le Depth to Benzenes Benzene Toluene o-Xylene m,p-1{ylene benzene PNOIb carbons <br /> Location (ft) {p n)c (p l (ppm) (PPM) (PPM) (perm <br /> +) ( (1pprn)c <br /> V7/A 3.0 : , <5 <1 <1 <1 <1 <1 <1 <5 <br /> "V7/$ <5 <1 <1 <1 <1 <1 <1 <5 <br /> V8/A 3.0 5 <1 <1 <1 <1 <1 <1 5 <br /> V8/B 5.5 5-10 <1 <1 <1 <1 <1 c1 <10 <br /> V9/A 3.0' '' <5 <1 <1 <1 <1 <1 <1 5 <br /> V9/B 5.5 <5 <1 <1 <1 <1 <1 <1 <5 <br /> V10 3.C " <5 <1 <1 <1 <1 <1 <1 5 <br /> V11 3:0 <5 <1 <1 <1 <1 <1 <1 <5 <br /> BLANK DATA <br /> Volatile <br /> Peaks Prior Ethyl- Hydro- <br /> to Benzenea Benzene Toluene o-Xylene m,p-Xylene benzene PNOIb carbons <br /> Test Time (plan)C (pprn). ( m) c c <br /> �� {ppm) (PPM)� -- (PJM) � _(�� <br /> 1120 <0.5 <0.1 <0.1 <0.1 <0.1 <0.1 <0.5 <1 <br /> 1234 <1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.5 <1 <br /> PERCENTAGE OF :STANDARD MCOVERED <br /> Ethyl <br /> Benzene. Toluene o-Xylene m,p-Xylene benzene <br /> a <br /> Test Tine (ppm) �. ( im) (Ppm) (T)pm) <br /> 1153 100 100 100 100 100 <br /> 1255 99 88 63 61 66 <br /> 1325 96 83 . 51 54 58 F <br /> a. ,Peaksfrom blank data subtracted from total peaks prior.to benzene. <br /> b. Peaks not otherwise identified. <br /> c. Quantification based on d-sec:ppm`ratio for benzene (see text). <br /> X <br /> - lr':v N...., iia 4[z.•.+xv+,:.n.»xtis+,,.um..wc+�xwr+xw.. <br /> ......�.v..v.`•....,+. :..,.o.,.,,.m.�.:...`.leu.,� o-a wM i,:...� u�...vzw.. :..:.s..x:s�.....,�.�:.,r:-.h...... <br />