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C~E~ <br />CORE LABORATORIES <br />Q U A L I T Y A S S U.R A N L E M E T H 0 0 5 <br />R E F E R E N C~E S A N D N O T E S <br />Report Dete: 07/22/98 <br />Core Laboratories - Gulf States - Houston, TX • HE <br />Lore Laboratories - Houston, TX • HP <br />Core Laboratories - Indianapolis, IN • IN <br />Core Laboratories - Lake Charles, LA • LC <br />Core Laboratories - Long Beach, CA • LB <br />Core Laboratories - Tampa, FL • TP <br />Lore Laboratories - Valparaiso, IN • VP <br />Other Subcontract Laboratories * XX <br />E%PLANATION OF DATA OUALI FIERS - ORGANIC PARAMETERS <br />U - This qualifier indicates that the analyte was analyzed <br />for but not detected. <br />J - This qualifier indicates that the value is an estimate. <br />It is used when a compound is determined to be present <br />based on the mass spectral data but at a concentration <br />less than the practical quantitation limit of the <br />method. <br />E - This qualifier indicates that a sample result is an <br />estimate because the concentration exceeded the upper <br />calibration range of the instrument. <br />EXPLANATION OF DATA QUALIFIERS - METALS 8 INORGANIC PARAMETERS <br />U - This qualifier indicates that the analyte was analyzed <br />for but not detected. <br />B - This qualifier indicates that the analyte was detected <br />at a level below the reporting limit but greater than <br />or equal to the instrument detection Limit. <br />EXPLANATION OF DATA FLAGS - ALL PARAMETERS <br />B - This flag indicates that an 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 />Y - This flag indicates that a post-digestion spike for <br />GFAA analysis is outside quality control limits. <br />X - 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 far <br />a spike and spike duplicate is outside quality <br />control limits. <br />• - This flag indicates a relative percent difference for <br />a 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 />Page 3 <br />m, vnryny ~ru. vnm~ u niwo~~nvu m~u.~ n inn r~ u~ euy umn mvrruim m na~sur wu~wi q ~x uw b~.mu e.cian ~ro m..baTUi ue uu im w or max iM wMUi rnN~. ux.m a w~pra~v~ <br />wwW .qe~n en es I V+~~ o~ Coo Iwvnati W umnvw mms. ns~a m ~wnh v ~evan.uim. uur w imaJ. G nF ~u. ~m w~W YeN+e urn a m P~ ovum„ n~ u~nw o ya~r~ a <br />~I di Wa mae miv mAU. VVaTy tivunln murnP ..m xuNSWrm~u u~alo gas i,.mvW mwnirx.~iM nmiMmiu rmuY[m n~nxenM .nw~[~~m~nven~o~f luvwvw <br />