This test method covers the determination of dissolved and total recoverable antimony in water by atomic absorption spectroscopy. This test method is applicable in the range from 1 to 15µg/L of antimony. The range may be extended by less scale expansion or by dilution of the sample. The precision and bias data were obtained on reagent water, tap water, salt water, and two untreated wastewaters. The information on precision and bias may not apply to other waters.