A.氯化鋇 B.鉻酸鋇 C.硝酸鋇 D.乙酸鋇
A.≤0.05% B.≤0.1% C.≤0.2% D.≤0.5%
A.≤1g/100g B.≤2g/100g C.≤5g/100g D.≤10g/100g