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1 <br />1 ~~1.A8 <br />CORE LABORATORIES <br />O U A L I T T A S S U R A N C E M E T H O D S <br />REFERENCE S A N D N O T E S <br />Report Date: 06/30/97 <br /> [ore Laboratories - lake Charles, LA • LC <br /> Core Laborator ies - Long Beach, CA • lB <br /> Core Laborator ies - Tanpe, FL • TP <br /> Core Laborator ies - Valparaiso, IN • VP <br />' Other Subcontract Laboratories ' %% <br /> EXPLANATION OF <br />U - DATA QUALIFIERS - ORGANIC PARAMETERS <br />This qualifier indicates that the anal yte was analyzed <br /> for but not detected. <br /> J - This qualifier indicates that the value is an estimate. <br /> It is used when a cortpound is determined to be present <br /> based on the mass spectral data but e[ a concentration <br /> less than the practical quentitation limit of the <br /> method. <br />' E - This qualifier indicates [hat a sanQle result is en <br />, estimate because the concentration exceeded the upper <br /> calibration range of the instrument. <br />~ E%PLANATION OF DATA OUALI FIERS - METALS 8 INORGANIC PARAMETERS <br /> U - This qualifier indicates that the enalyte was analyzed <br /> for but not detected. <br /> B - This quaLif Ter indicates that the anal yte was detected <br /> et a level below the reporting limit but Greater than <br />' or equal to the instrument detection limit. <br /> E%PLANAiION OF DATA FLAGS - ALL PARAMETERS <br /> B - This flag indicates that en analyte is present in <br />' the method blank as well as in the sample. The client <br /> should consider this when evaluating the data. <br /> E - This flag indicates the reported value is estimated due <br /> to sample matrix interference. <br /> N - This flag indicates that a post-di gesti on spike for <br /> GFM analysis is outside quality control limits. <br /> % - This flag indicates that a surrogate recovery is <br /> outside quality control limits. <br /> Y - This flag indicates a spike or spike duplicate recovery <br /> is outside quality control limits. <br /> 2 - This flag indicates a relative percent difference for <br /> a spike and spike duplicate is outside quality <br /> control limits. <br /> • - This flag indicates a relative percent difference for <br /> e duplicate analysis is outside quality control <br /> limits. <br /> - This flag indicates a percent recovery for a standard <br />is outside quality control limits. <br /> <br />', <br /> Page 5 <br /> <br /> <br />r.. ~,. . - .. , ..... ,-. .. ..~ - a ...w..-. ~.. - , ..~~ ,-,~ , a..~.,w. . .. ........ .. . ...~o.o... _ . ~~..~,.. <br />