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About This Item
Full Description
1.1''This practice covers two procedures for the total digestion of sediments for subsequent determination of metals by such techniques as flame atomic absorption spectrophotometry, graphite-furnace atomic absorption spectrophotometry, atomic emission spectroscopy, etc.
1.2''This practice is applicable in the subsequent determination of volatile, semivolatile, and nonvolatile metals of sediments.
1.3''Actual metal quantitation can be accomplished by following the various test methods outlined under other appropriate ASTM standards for the metal(s) of interest. Before selecting either of the digestion techniques outlined in this practice, the user should consult the appropriate quantitation standard(s) for any special analytical considerations, and Practice D3976 for any special preparatory considerations.
1.4''The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5''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. For a specific hazard statement, see 15.5.
1.6''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.
Document History
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ASTM D4698-21
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Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals- Most Recent
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ASTM D4698-92(2013)
Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals- Historical Version
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ASTM D4698-92(2007)
Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals- Historical Version
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ASTM D4698-92(2001)
Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals- Historical Version
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ASTM D4698-92(1996)
Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals- Historical Version