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This practice covers the drying, ashing, and solubilization of solid waste using a lithium metaborate (LiBO
Formerly under the jurisdiction of Committee D34 on Waste Management, this practice was withdrawn in January 2012. This standard is being withdrawn with no replacement because the practice adds no new technology and there are no plans to run a round robin study to determine precision and bias.
1.1 This practice covers the drying, ashing, and solubilization of solid waste using a lithium metaborate (LiBO2) fusion for the subsequent determination of inorganic constituents by argon plasma emission spectroscopy or atomic absorption spectroscopy.
1.2 The following elements may be solubilized by this practice:
1.3 This practice has been used successfully with a bauxite ore and a neutralized metal treatment sludge. The practice may be applicable to other elements not listed above. Some metals, such as cadmium and zinc, may volatilize from some samples during the drying, ashing, or fusion steps. The analyst is responsible for determining whether the practice is applicable to the solid waste being tested.
1.4 This practice is intended for the solubilization of nonvolatile inorganic constituents in solid waste. The LiBO2 fusion is appropriate for a silicate matrix or acid resistant samples.
1.5 This standard does not purport to address all of the safety problems 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 Section 7.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D3682 Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials