THE CARBON DIOXIDE PROJECT, SCRIPPS INSTITUTION OF OCEANOGRAPHY        
Certified Reference Material, Batch 2 (Natural Sea Water)              
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TABLE 2B
SUMMARY OF ALKALINITY DATA

  ANAL   TITR SAMPLE             --------------- ALK(uEQ/KG) -----------------  
  DATE   SYST BOTTLE TRIAL FLAG  INDIV    AV(G)   STDEV(G)     AV(V)   STDEV(V) 
                                                                       
 14FEB90   G    22PB   3        2242.18  
 19NOV90   G   282PB   1        2243.38  
 20NOV90   G    21PB   1        2242.37  
 21NOV90   G    74PB   1        2245.34  
 21NOV90   G    74PB   2        2243.87  
 16JAN91   V   143PB   1        2239.68  
 17JAN91   V   264PB   1        2243.17  
 17JAN91   V   151PB   1        2244.64  
 17JAN91   V   250PB   1        2244.99  
 30JAN91   V    30PB   1        2243.76  
 30JAN91   V   164PB   1        2244.54  
 01FEB91   V    25PB   1        2243.02  
 01FEB91   V    84PB   1        2246.24  
 01FEB91   V    72PB   1        2246.68  
 05FEB91   G    73PB   1        2245.99  
 07FEB91   V   125PB   1        2248.66  
 07FEB91   G   125PB   2        2241.21  
 07FEB91   G   125PB   3        2236.45  
 07FEB91   V   125PB   4        2243.56  
 07FEB91   V    22PB   1    EX  2263.26  
 07FEB91   G    22PB   2        2243.23  
 01MAR91   G   223PB   1        2244.35  
 01MAR91   G   245PB   1        2244.86  
 04MAR91   G    55PB   1        2244.45  
 04MAR91   G   209PB   1        2244.65  
 11MAR91   G   152PB   1        2243.72  
 11MAR91   G     9PB   1        2242.59  
 02APR91   G   192PB   1        2247.02  
 02APR91   G   192PB   2        2246.59  
 08MAY91   G   135PB   1        2243.37  2243.66 2.38(of 18) 2244.43 2.30(of 11)

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TITRATION SYSTEM:                                FLAGS:
 G = GRAVIMETRIC                                   EX:  Excluded from analysis 
 V = VOLUMETRIC