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Table 8a <br /> VOLATILE ORGANIC COMPOUND REPRODUCIBILITY DATA <br /> (Continued) <br /> 1. Reproducibility is Relative Percent Difference (RPD) <br /> 2. RPD = (I + x2V x 100 <br /> 1 2 <br /> Where xl = primary analytical result <br /> x2 = duplicate analytical result <br /> 3. VC - vinyl chloride PCE - tetrachloroethylene <br /> BENZ - benzene CCL4 - carbon tetrachloride <br /> EDB - ethylene dibromide TCA - 1,1,1-trichloroethane <br /> DCA - 1,2-dichloroethane TCE - trichloroethylene <br /> MECL - methylene chloride CHCL3 - chloroform <br /> 4. ppb = parts per billion <br /> 5. ND = not detected <br /> 6. DUP = duplicate <br /> 7. CRM = certified reference mixture <br /> 8. NA = not applicable; compound is not present in CRM <br /> 9. Mean reproducibility and standard deviation calculation based on 3/2/88 and 3/6/88 sample dates only <br /> PJ9 9390304.00D 5-8 Rev. 0 09/20/88 <br />