Loading patent…
AssigneeRj Lee Group, Inc.
InventorsRICHARD J. LEE, Matthew Spencer Sanchez, Alan M. Levine
Estimating the term…
A method for quantitative analysis of asbestos in vermiculite-containing materials includes a first embodiment which includes washing the sample with water or treating the sample with a low concentration acid to digest gypsum and carbonates, ashing the sample at a low temperature to remove cellulose, therefrom and analyzing the sample. Digestion may be effected before or after ashing. Subsequently, a second subsample may be ashed at low temperature to remove cellulose and refluxed with a concentrated acid followed by refluxing with a base and rinsing with deionized water to wash away gypsum, vermiculite and other soluble components. This is followed by analysis to determine asbestos concentration. In a further embodiment, the residue if the first embodiment may be employed as the second subsample.
A method for quantitative analysis of asbestos in a vermiculite-containing material comprising,
A method for quantitative analysis of asbestos in a vermiculite-containing material comprising,
Dependencies are inferred from the claim text.