fire assay

fire assay

[¦fīr ′as‚ā]
(materials)
Analysis of a metal-bearing material, especially gold and silver, by heating a sample with a suitable flux and weghing the resulting metal beads.
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In conjunction,, the fire Assay for Au (using a 50 gram sample) with an AAS finish was carried out routinely on all samples submitted.
AnchorCert Analytical will present a detailed talk on 'Analysis of high purity gold by the Fire Assay method' at this year's LMBA Assaying and Refining Conference, to be held at The Royal Garden Hotel, Kensington, London from 19 to 22 March.
Contract notice: Providing dedicated hardware measures and fire assay techniques for aeronautical dga.
Trialling of leach-well assays, using significantly larger sample sizes than fire assays indicating 13% more gold than fire assay.
Business is heating up and expanding for SPJ Labs, Sudbury's only privately-run fire assay laboratory.
The author shows that fire assay can occasionally exhibit errors and suggests possible lines of investigation.
Based in Tucson, Arizona, Jacobs Assay Office is a provider of fire assay services for the mineral processing industry.
In addition, many industry participants (operators, analysts, and investors) prefer that the data be presented using a more standard analytical procedure, such as hot cyanide leach or fire assay.
Meanwhile the ongoing research producing "metal in hand" by standard fire assay in order to determine a benchmark grade is progressing.
OTC/BB:ECPN) Company President and CEO, Chuck Mottley, reports: "It is significant that our metallurgists are now using standard fire assay methods and producing 'metal in hand' (in the form of a bead).
7 lb/short ton U3O8 by chemical analysis (ICP-MS), has now been analyzed by fire assay (ICP-ES).
From this material a 20 g sample is analyzed by Fire Assay (F.