Inhibition of Copper Pitting Corrosion in Aggressive Potable Waters

Table 2

Experimental conditions for large- and small-scale tests.

Test variable	Water quality
	Large-scale tests	Small-scale tests
Control (values as mg/L)	pH 9.2, free chlorine (as Cl2) = 4, Ca^2+ = 17, Na^2+ = 16, Cl^− = 20, SO4^2− = 13, alkalinity = 34 (as CaCO3)
Free chlorine adjusted mg/L (as Cl2)	0.4	0.5, 1, 2, 3, 8
Orthophosphate added mg/L (as P)	0.1, 1	0.015, 0.025, 0.1, 0.25, 0.5, 1
Silica added mg/L (as Si)	0.5, 5	0.1, 0.5, 2.5, 10
Organic matter added mg/L (as TOC)	0.01^A, 0.1^A	0.005^A, 0.1^A, 0.05^A, 0.05^B, 0.05^C
Alkalinity adjusted mg/L (as CaCO3)	10, 150	None

^ANOM, ^Bozonated NOM, ^Csodium acetate/d-glucose.