電導度標準液 ; HI 7030L, 12,880μS/cm, (1加侖) ; HI 7031, 1413 μS/cm, 500ml ; HI 7031, 1413 μS/cm, (1加侖) ; HI 7033L, 84 μS/cm, 500ml ; HI 7034L, 80000 μS/cm, 500ml.
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