THE CARBON DIOXIDE PROJECT, SCRIPPS INSTITUTION OF OCEANOGRAPHY        
Certified Reference Material Batch 4 (Natural Sea Water)                        
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TABLE 1D
SUMMARY OF DISSOLVED INORGANIC CARBON DATA

 ANAL  ANAL SAMPLE            -----------------DIC(uM/kg)----------------------
 DATE  SYST BOTTLE  RUN FLAG  INDIV    AV(M)   STDEV(M)     AV(S)    STDEV(S)

910404   M   363PD  001      1994.20 
910404   S   363PD  001      1994.54 
910405   M   463PD  001      1994.56 
910405   M   467PD  001      1993.67 
910411   S   463PD  001      1993.65 
910411   S   467PD  001      1993.40 
910419   M   297PD  001      1998.33                                           
910419   M   481PD  001      1997.85 
910425   S   297PD  001      1996.79 
910502   M     4PD  001      2001.81 
910503   M   166PD  001      1996.82  1996.75  2.88(of 7)  1994.60  1.53(of 4)

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ANAL SYST:                                        
 M = CONSTANT VOLUME MERCURY MANOMETER            
 S = QUARTZ SPIRAL MANOMETER