Skimmed milk has a little more calcium than semi-skimmed, which in turn has a little more calcium than whole milk. The reason is simply that as the fat is removed, the watery proportion of the ...
Chemical levels should be maintained in the following ranges for a well-balanced saltwater pool: Calcium Hardness: 180-200 ppm Stabilizer level: 50-80 ppm Alkalinity: 70-80 ppm pH: 7.6 The best ...
Van Slyke, D. D., and Hiller, A., J. Biol. Chem., 102, 499 (1933).
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