实验室三级水对电导率的要求是:()um/cm。
A.≤5
B.≤0.10
C.≤0.01
D.≤0.20
A.≤5
B.≤0.10
C.≤0.01
D.≤0.20
A.一级水≤0.1μS/cm;二级水≤1.0μS/cm;三级水≤5.0μS/cm
B.一级水≤0.01μS/cm;二级水≤0.1μS/cm;三级水≤0.5μS/cm
C.一级水≤5.0μS/cm;二级水≤1.0μS/cm;三级水≤0.1μS/cm
D.一级水≤0.5μS/cm;二级水≤0.1μS/cm;三级水≤0.01μS/cm
A.pH值
B.电导率
C.水的硬度
D.可溶性硅
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