FFA4: free fatty acid ≤ 4%, moisture impurity saponification content ≤1% , melting point 41-43 ℃, FAC colors ≤ 29;
FFA10: free fatty acid ≤ 10%, moisture impurity saponification content ≤2% , melting point 41-43 ℃, FAC colors ≤ 29。