Sludge ash reference sample
J.R. Knechtel and J.L. Fraser
Wastewater Technology Centre, Burlington, Ontario L7R 4A6, Canada
A sludge ash reference sample has been prepared. It has been analyzed by twenty-one independent laboratories. Information is presented on the number of analysts reporting each element, and the various instrumental methods used. Results are reported for twenty-six elemental determinations. Recommended elemental composition of the sample is given for twenty-one elements.
(1980), Vol. 4 No. 2 pp. 213-215
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