What kinds of water quality can industrial water be divided into? What are the water quality requirements?
Industrial water can be generally divided into the following six categories:
(1)First grade softened water, hardness <0.02 mmol/L
(2)Second grade softened water, hardness <0.0025 mmol/L
(3)Alkali removal softened water, hardness <0.0025 mmol/L;degree of alkalinity,0.15 ~ 0.25 mmol/L
(4)First grade demineralized water,conductivity <5 μS/cm,silicon dioxide <0.1 mg/L
(5)Second grade demineralized water,conductivity <0.2 μS/cm,silicon dioxide <0.015 mg/L
(6)Ultrapure water, conductivity <0.06 μS/cm,silicon dioxide <5 μg/L, And there are strict requirements for the quantity of bacteria.
The natural water treated by ion exchange resin can meet the above industrial water standards.
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