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. 2021 Feb 2;7(2):e06151. doi: 10.1016/j.heliyon.2021.e06151

Table 2.

Boiler water acceptance criteria.

Parameter Acceptance criteria
pH 8–10.2
Conductivity (μS/cm) 15–80
SiO2 (ppm) 0–1
PO4 (ppm) 3–10
N2H4 (ppm) 0.01–0.03