Ppm 06
Ppm 06 :
(n.) Drilling Fluids. Abbreviation for the expression of concentration, parts-per-million. For solid and liquid concentrations, ppm refers to weight (mass) units. For example: (1) Calcite in a ground barite sample may be 400 ppm. (2) Calcium chloride in a water solution may be 250, 000 ppm. Note that the relationship of ppm to weight percentage is 10, 000 ppm = 1 wt. %. For gases, ppm refers to volume (or mole) units. For example, H2S in an air sample may be 10 ppm (both by volume and by moles). See: Dissolved Solids, Epm, LC50, Milligrams Per Liter
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