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ASTM D 5198 Document Information:
Title
Standard Practice for Nitric Acid Digestion of Solid Waste
ASTM International
Publication Date:
Jan 9, 1992
Scope:
This practice describes the digestion of solid waste using nitric acid
for the subsequent
determination of inorganic constituents by argon plasma emission
spectroscopy or atomic absorption
spectroscopy.
The following elements may be solubilized by this practice:
This practice is to be used when the concentrations of total
recoverable elements are to be
determined from a waste sample. Total recoverable elements may or may
not be equivalent to total
elements, depending on the element sought and the sample matrix.
Recovery from refractory sample
matrices, such as soils, is usually significantly less than total
concentrations of the elements
present.
NOTE 1 - This practice has been used successfully for oily sludges and
a municipal digested sludge
standard [Environmental Protection Agency (EPA) Sample No. 397]. The
practice may be applicable to
some elements not listed above, such as arsenic, barium, selenium,
cobalt, magnesium, and calcium.
Refractory elements such as silicon, silver, and titanium are not
solubilized by this practice.
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 Section 7.
Keywords:
- digestion
- nitric acid
- waste
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