Ppm Definition

Ppm Sentence Examples

• As the silicon crystal grows oxygen is incorporated as an interstitial atom in the silicon matrix at a concentration of typically 10-40 ppm.

• Therefore the true concentration of the colloidal calcium carbonate is likely to have been 89 or 101 ppm as CaCO3.

• Dalradian limestones commonly have Sr greater than 1000 ppm, indicating primary aragonite and marine diagenesis.

• There was a clear dose related increase in parathyroid gland hyperplasia from the lowest dose 400 ppm.

• The dolomite marbles have an average Sr content of 115 ppm.