... . SPEC ProjectIndicatorsProtein (dry base) ,%≤0.5PH Value5.0-8.0Moisture,%≤14.0Ash (dry base),%≤0.3Loss on drying≤0.6Fineness≥99.5 (150μm ... , e/cm2≤3.0Whiteness≥96.0 (440nm Blue-ray reflectivity),%Fat,%≤0.3Fe≤10ppmLead (Pb),mg/kg≤0.4Total arsenic (As),mg/kg ... ≤0.5Sulfur dioxide (SO2),mg/kg≤15Acidity (0.1mol / L NaOH/100g),ml ...