COLUMNS 38 - ^4-2 SALINITY 



Enter salinity in parts per thousand to hundredths in Columns 38-^1; 

 Column k2 is for an additional (thousandths) decimal. Table 30 converts 

 chlorinity to salinity. 



Columns iS — 50 do not appear on the data form. On the punch card these columns are reserved for com.- 

 puted sigma-t and sound velocity. Sound velocities measured by a velocimeter (or tem,peratures or salinities 

 based on these measurements) should be forwarded or coded separately. 



COLUMNS 51 - 53 OXYGEN 



Enter oxygen in milliliters per liter (ml/l) to hundredths in Columns 

 51-53' (if determined to tenths only leave Column 53 hlahk. ) Table 31 

 converts milligrams per liter (mg/l) and Table 32 converts milligram- 

 atoms per liter (mg-at/l) to ml/l. 



To record oxygen values greater than 9.99 ml/l enter two numerals (tens arui units) in Column 51. 



COLUMNS 5U - 71 OPTIONAL CHEMISTRY 



Columns 5^-71 are intended for entry of the additional chemistry described 

 below; this is the only chemistry that will be punched routinely. A 

 special punch card to record chemistry other than that shown below is 

 being developed at NODC. However, any chemistry may be substituted in 

 these columns by special request provided that: 



1. It can be reported in a 3 digit field. 



2. The nature and units of the substituted 

 chemistry and the columns used are fully 

 described in the Remarks space of the data 

 form. 



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