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DIN 38405-7:2002
German standard methods for examination of water, waste water and sludge - Anions (group D) - Part 7: Determination of cyanides in low polluted water by ion chromatography or potentiometric titration (D 7)
The document describes four chemical methods for the determination of cyanide in water in a concentration range from 0,05 mg/l to 10 mg/l. The parameters total cyanide and easily released cyanide are determined each by chromatography of ions and by potentiometric titration.
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Deutsches Institut für Normung [din]