Open-Loop Circulating Cooling Water Quality Requirements

Chromaticity ≤

5

Other colors are not allowed.

Turbidity ≤

1

-

stench and taste

-

Odorless Odor

Visible objects

-

Not detectable

Quality physicochemical indicators

pH value

5.0-7.0

Electrical conductivity (25±1°C) , μS/cm

10

Potassium permanganate consumption ( as O2 ) mg/l

1.0

Chloride (as Clˉ ) mg/l

6.0

Pollution physicochemical indicators

lead

Implement according to GB 17324 .

arsenic

copper

Cyanide (as CN- ) 1 )

Volatile phenols (calculated as phenol) 1 )

Free chlorine (as Cl- )

chloroform

Carbon tetrachloride

Nitrite (as NO2- )

1 ) Cyanide and volatile phenol content indicators are only applicable to products produced using the distillation method.

Microbiological indicators

Perform in accordance with the provisions of GB 17324 .