CaCO3)                              %                  

      98.0∼100.5

Insoluble Matter In Acid                 %

≤ 0.20

Free alkalinity                         %

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Ba                                  %

≤ 0.030

Magnesium and Alkali Salts             %

≤ 1.0

As                                  %

≤ 0.0003

Loss on Drying                        %

≤ 2.0

F                                   %

≤0.005

Pb                                  %

≤0.0003

Hg                                  %

≤0.0001

Cd                                  %

≤ 0.0002