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SW-846 Test Method 9213: Potentiometric Determination of Cyanide in Aqueous Samples and Distillates with Ion-Selective Electrode

The following document discusses the method for measuring free (non-complexed) cyanide and hydrocyanic acid in drinking waters, natural surface waters, domestic and industrial wastewaters, and in soil extracts.

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Method 9213: Potentiometric Determination of Cyanide in Aqueous Samples and Distillates with Ion-Selective Electrode, part of Test Methods for Evaluating Solid Waste, Physical/Chemical Methods (PDF)(8 pp, 63 K, December 1996)