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    ASTM D4698 - 92(2013)

    Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals

    Active Standard ASTM D4698 | Developed by Subcommittee: D19.07

    Book of Standards Volume: 11.02

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    Significance and Use

    5.1 The chemical analysis of sediments, collected from such locations as streams, rivers, lakes, and oceans can provide information of environmental significance.

    5.2 These practices can be used with either suspended sediment (material actively transported by water) or bed sediment (material temporarily at rest on the bed of a water body).

    5.3 Standardized practices for digesting sediments, for subsequent chemical analysis, will facilitate inter- and intra-areal comparisons as well as comparison of data generated by different groups. The use of total digestions also eliminates the ambiguities and interpretational difficulties associated with partial digestions and the operational definitions that accompany them.


    1. Scope

    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 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 a specific hazard statement, see Note 7.

    1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1129 Terminology Relating to Water

    D1192 Guide for Equipment for Sampling Water and Steam in Closed Conduits

    D1193 Specification for Reagent Water

    D3976 Practice for Preparation of Sediment Samples for Chemical Analysis

    ICS Code

    ICS Number Code 13.060.50 (Examination of water for chemical substances)

    UNSPSC Code

    UNSPSC Code

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D4698-92R13

    Citation Format

    ASTM D4698-92(2013), Standard Practice for Total Digestion of Sediment Samples for Chemical Analysis of Various Metals, ASTM International, West Conshohocken, PA, 2013, www.astm.org

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