Automatic Sand Filter Water Treatment with ABS Water Distributor

Indicator name

Liquid

Solid

Alumina (Al2O3 ) mass fraction/%≥

10.0

29.0

basicity%

40.0-90.0

Density (20℃)/(g/cm3) >=

1.12

_

Mass fraction of insoluble substance/%≤

0.2

0.6

PH value (10g/L aqueous solution)

3.5-5.0

The mass fraction of arsenic (As) is%

0.0002

The mass fraction of lead (Pb) is% ≤

0.001

The mass fraction of cadmium (Cd) is% ≤

0.0002

Mass fraction of mercury (Hg)% ≤

0.00001

The mass fraction of hexavalent chromium (Cr+6) is% ≤

0.0005

Note: The indexes of As, Pb, Cd, Hg, Cr +6and insoluble substances listed in the table for liquid products are calculated at 10%
of AL2O3,with AL2O3 content ≥10%, should be converted into AL according to the actual content. 10% product ratio to calculate
various impurity indexes.