執行標準QB/T2002-01CaCO3含量≥98%PH值9.0-10.5105℃下揮發分含量≤0.5%鹽酸不溶物≤0.1%沉體≥2.5ml/gFe≤0.05%Mn≤0.005%篩余125um≤0.005%45um≤0.005%白度≥96度