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Item

       Index

UP-S grade

UP-SS grade

Ammonium fluoride w/%

40.0±1.0

40.0±1.0

Ammonium fluosilicate [ (NH4) 2SiF6]w /(mg/kg)           ≤

10

10

Color /Hazen                         ≤

10

10

pH(10g/L solution,25℃ )

6.0-7.5

6.0-7.5

Chloride ( Cl) w /(mg/k g)         ≤

3

0.2

Nitrate (NO3) w /(mg/kg)        ≤

3

0.1

Phosphate (PO4) w /(mg/kg)        ≤

1

0.1

Sulfate (SO4) w /(mg/kg)        ≤

3

0.2

Aluminum (Al) w /(μg/kg)                   ≤

1

0.1

Arsenic (As) w /(μg/kg)                  ≤

1

0.1

Boron (B) w /(μg/kg)                   ≤

1

0.1

Barium (Ba) w /(μg/kg)                  ≤

1

0.1

Calcium (Ca) w /(μg/kg)                  ≤

1

0.1

Cadmium (Cd) w /(μg/kg)                  ≤

1

0.1

Chromium (Cr) w /(μg/kg)                   ≤

1

0.1

Copper (Cu) w /(μg/kg)                   ≤

1

0.1

Iron (Fe) w /(μg/kg)                   ≤

1

0.1

Potassium (K) w /(μg/kg)                   ≤

1

0.1

Lithium (Li) w /(μg/kg)                   ≤

1

0.1

Magnesium (Mg) w /(μg/kg)                  ≤ 

1

0.1

Manganese (Mn) w /(μg/kg)                  ≤

1

0.1

Sodium (Na) w /(μg/kg)                   ≤

1

0.1

nickle (Ni) w /(μg/kg)                   ≤

1

0.1

Lead (Pb) w /(μg/kg)                   ≤

1

0.1

Titanium (Ti) w /(μg/kg)                    ≤

1

0.1

Stibium (Sb) w /(μg/kg)                   ≤

1

0.1

Stannum (Sn) w /(μg/kg)                   ≤

1

0.1

Vanadium  (V)/ w (ug/kg)                     ≤

1

0.1

Zinc (Zn) w /(μg/kg)                   ≤

1

0.1

Particle

(≥0.5μm) / (mL)      ≤

10

－

(≥0.2μm) / (mL)      ≤

－

10