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TPH BY IR - BLANK SPIKE <br /> Method 418 1 <br /> s <br /> Lab Name Analytical Technologies, Inc Date Extracted 10/19/93 <br /> 1 Client Name Ryan-Murphy, Inc Date Analyzed 10/20/93 <br /> Lab lD SBS1 10/19/93 Sample Matrix: Sodium Sulfate <br /> Spike BS BS <br /> Added Concentration Percent <br /> Sample ID (mg/kg) (mg/kg) Recovery <br /> rIn House 100 1 108 108 <br /> 1 <br />