EPA Method 9212

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EPA Method 9212:
POTENTIOMETRIC DETERMINATION OF CHLORIDE IN AQUEOUS SAMPLES WITH ION-SELECTIVE ELECTRODE

Summary:
Total solubilized chloride is determined potentiometrically using a chloride ionselective electrode (ISE) in conjunction with a double-junction reference electrode, or a chloride combination ISE, and a pH meter with an expanded millivolt scale or an ISE meter capable of being calibrated directly in terms of chloride concentration.

Scope:
This method can be used for measuring total solubilized chloride in drinking waters, natural surface waters, groundwaters, domestic and industrial wastewaters, and in soil extracts (ASTM methods D4646-87, D5233-92 or D3987-85).

Report Number:
SW-846 Ch 5