Water quality — Determination of iron — Spectrometric method using 1,10-phenanthroline

Specifies a procedure for water and waste water. Describes the determination of total iron by direct determination and determination after decomposition, of total dissolved iron and of dissolved iron(II). The procedures are applicable to concentrations between 0,01 and 5 mg/l. Concentrations above 5 mg/l may be determined after dilution of the sample.