题目内容
(请给出正确答案)
[单选题]
实验室用普通蒸馏水(三级水)电导率应小于()。
A.0.05μs/cm
B.0.5μs/cm
C.1.0μs/cm
D.5.0μs/cm
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A.0.05μs/cm
B.0.5μs/cm
C.1.0μs/cm
D.5.0μs/cm
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