GB 6682—2008《分析实验室用水规格和试验方法》将实验室用水分为三个等级,各级别25℃电导率为(___)。
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≤0.01μS/cm;二级水≤0.1μS/cm;三级水≤1.0μS/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≤0.01μS/cm;二级水≤0.1μS/cm;三级水≤1.0μS/cm