Table 2-11: Facility Water Quality Requirements
pH Value 6.5 to 8.2 at 77 °F (25 °C)
Electrical Conductivity < 0.8 mmho/cm
Chloride Ion < 200 ppm
Sulfate Ion < 200 ppm
M-Alkalinity < 100 ppm
Total Hardness < 200 ppm
Calcium Hardness < 150 ppm
Ionic Silica < 50 ppm
Iron < 1.0 ppm
Copper < 0.3 ppm
Sulfide Ion None, not detectable
Ammonium Ion < 1.0 ppm
Residual Chlorine < 0.3 ppm
Free Carbon Dioxide < 4.0 ppm
Stability Index 6.0 to 7.0
Suspended Matter < 10 ppm
Particle Size < 100 micron (with field changeable filter)
SIGNA Voyager Pre-Installation
Direction 5680008–1EN, Revision 2
Chapter 2 General System Level 45
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