TABLE 37 (Cont'd) 

 Nitrogen 



Conversion from micrograms per liter of N to microgram-atoms per liter of N. 



(1 M,g of N = 0.07139^^ M-g-at of N) 



Micrograms 

 per liter 



of N 0.0 1.0 2.0 3-0 ^.0 ^'0 6.0 7.0 8.0 9.O 



510 36.41 36.i+8 36.55 36.63 36.70 36.77 36.84 36.91 36. 98 37.05 



520 37.13 37.20 37.27 37.34 37.41 37.48 37-55 37.62 37-70 37-77 



530 37-84 37.91 37.98 38.05 33.12 38.20 38.27 38.34 38.41 38.48 



540 38.55 38.62 38.70 38.77 38.84 38.91 38.98 39.05 39.12 39.20 



550 39.27 39.34 39.41 39.48 39.55 39.62 39-70 39.77 39.84 39-91 



560 39.98 40.05 40.12 40.20 40.27 40.34 4o.4l 40.48 40.55 40.62 



570 40.69 40.77 40.84 40.91 40.98 41.05 41.12 41.19 41.27 41.34 



580 41. 4l 41.48 41.55 41.62 41.69 41.77 41.84 41.91 41.98 42.05 



590 42.12 42.19 42.27 42.34 42.41 42.48 42.55 42.62 42.69 42.77 



600 42.84 42.91 42.98 43.05 43.12 43.19 43.27 43.34 43.41 43.48 



610 43.55 43.62 43.69 43.76 43.84 43.91 43.98 44.05 44.12 44.19 



NOTE: Values obtained for the amount of nitrogen in nitrate by the 

 use of these tables are to be rounded to the nearest tenths 

 decimal place before entering on the coding forms. 



108 



