At 10:06 PM 5/23/2007, you wrote:
ppm and mg/l are the same.
I doubt that. One is a unit of weight, the other a unit of volume.
This statement sounds like something used in the medical profession.
Where did you learn that? It might be true on some things, but weight and
volume does not make specific amounts or ratios.
No one can say how many mg makes a liter.
Try lead, gold, water, ice, ice cream, whipping cream, and
10, 000 other things. All are different of course.
Typically, in most cases, ppm is a weight, 1 to 1 million,
Most calculations are done this way.
The unit can be anything, ounces, grams, mg, pounds, tons or whatever.
Weight to Volume is doomed to failure and errors.
Wayne
