Conductivity standard solutions for laboratory and field analysesNatural Water Standard Solution, 40% sodium sulfate/40% sodium bicarbonate/20% sodium chloride. TDS: 30 ppm ?0.3 ppm, Conductivity: 46.7 ?S/cm ?0.5 ?S/cm at 25?C. 500 mL bottle.There are no reviews for this product.Write a review
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