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                2. 7447-40-7 / 147 µS/cm (25 °C), KCl 0,001 mol/l
                  Conductivity standard, 147 µS/cm (25 °C), KCl 0,001 mol/l 電導率标準溶液, 147 μS/cm (25°C),氯化鉀 0,001 mol/l
                  7447-40-7 / 1413 µS/cm (25 °C), KCl 0,01 mol/l
                  Conductivity standard, 1413 µS/cm (25 °C), KCl 0,01 mol/l 電導率标準溶液, 1413 μS/cm (25°C),氯化鉀 0,01 mol/l
                  7447-40-7 / 12880 µS/cm (25 °C), KCl 0,1 mol/l
                  Conductivity standard, 12880 µS/cm (25 °C), KCl 0,1 mol/l 電導率标準溶液, 12880 μS/cm (25°C),氯化鉀 0,1 mol/l
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