Which of the following conditioning method is not used in internal treatment?
A. Colloidal
B. Calgon
C. Carbonate
D. Bicarbonate
Answer:D
Which of the following conditioning method is not used in internal treatment?
A. Colloidal B. Calgon C. Carbonate D. Bicarbonate
Explanation: Colloidal, calgon, phosphate and carbonate conditioning methods are