ASTM D8596-24

1.1 This test method covers the determination of bioavailable aluminum in water using an extraction procedure at a pH of 4 and an aging period of 3 h following the addition of an acidic buffer.

1.2 This test method uses existing analytical methods for the determination of aluminum in water and only presents a new extraction procedure designed to recover the bioavailable fraction of aluminum present in a water sample.

1.3 This test method is designed to be used to assess the potential for aluminum in water samples to be toxic to aquatic life.

1.4 This test method is applicable to waters containing dissolved, polymeric, and mineral forms of aluminum and is applicable to concentrations ranging from 0.01 mg/L to 5 mg/L.

1.5 This test method was tested on natural surface waters and wastewaters containing suspended solids. It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices.

1.6 Precision and bias have been obtained on natural waters, wastewaters, and reagent waters. It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices.

1.7 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.