Over deze norm
1.1 This test method covers the direct flame atomic absorption determination of aluminum in the nitrous oxide-acetylene flame.
1.2 This test method is applicable to waters containing dissolved and total recoverable aluminum in the range from 0.5 to 5.0 mg/L. Aluminum concentrations as high as approximately 50 mg/L can be determined using this test method without dilution. However, no precision and bias data are available for concentrations greater than 5.0 mg/L.
1.3 This test method was tested on reagent, natural, and potable waters. It is the user''s responsibility to ensure the validity of this test method for waters of untested matrices.
1.4 The same digestion procedure may be used to determine total recoverable nickel (Test Methods ), chromium (Test Methods ), cobalt (Test Methods ), copper (Test Methods ), iron (Test Methods ), lead (Test Methods ), manganese (Test Methods ), and zinc (Test Methods ).
1.5 Precision and bias data have been obtained on reagent, natural, and potable waters. It is the responsibility of the user to ensure the validity of this test method on untested matrices.
1.6 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversion to inch-pound units that are provided for information only and are not considered standard.
1.7 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see , , and .
1.8 Former Test Methods A (Fluorometric) and B and C (Spectrophotometric) were discontinued. Refer to for historical information.
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.
|Engelse titel||Standard Test Method for Aluminum in Water|