what is the meaning of m/m "in a global cap of 4.5% m/m on the sulphur content of fuel oil"?

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2006-08-22 03:59:23 · 2 answers · asked by dhirendrabihari 1 in Environment

I would have to guess milligrams per milliliter. 4.5% mass over mass would just be way too much sulfur, I believe.

2006-08-22 05:20:46 · answer #1 · answered by Sciencenut 7 · 0⤊ 0⤋

Maybe mass per mass instead of mass per volume

2006-08-22 04:14:25 · answer #2 · answered by happyman 3 · 0⤊ 0⤋