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Hanna 1382 ppm Solution, 230 ml lighting-&-electrical-components It is widely accepted thatThe conductivity solutions are made of high quality potassium chloride with different strengths. The solutions are standardized with a conductivity meter, calibrated by high purity NIST 999 potassium chloride in deionized water. The concentration is also confirmed by NIST 2201 standardized silver nitrate solution.
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