1.1 These test methods cover the determination of dissolved and total recoverable lead in water and waste water by atomic-absorption spectrophotometry and differential pulse anodic stripping voltammetry. Four test methods are included as follows:
ConcentrationRange
Sections
Test Method A-Atomic Absorption, Direct
1.0 to 10 mg/L
7 to 15
Test Method B-Atomic Absorption, Chelation-Extraction
100 to 1000 μg/L
16 to 24
Test Method C-Differential Pulse Anodic Stripping Voltammetry
1 to 100 μg/L
25 to 35
Test Method D-Atomic Absorption, Graphite Furnace
5 to 100 μg/L
36 to 44
1.2 Test Method B can be used to determine lead in brines. Test Method D has been used successfully with reagent water, lake water, well water, filtered tap water, condensate from a medium Btu coal gasification process, waste treatment plant effluent, and a production plant process water.
1.3 It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.
1.4 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 hazards statements, see 10.4.1, Note 2, 11.2, 11.3, 21.7, 21.8, 21.11, 23.7, 23.10, 32.2.1, and 33.1.
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