OREAS 99

OREAS 99 is a copper concentrate obtained from the CSA mine in Cobar, New South Wales. This reference material has been characterised for Cu and Ag by classical methods at umpire laboratories. It is packaged in 10g units and sealed under nitrogen in laminated foil pouches.

Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Cu, Copper (wt.%) 25.89 0.100 25.82 25.96 Classical Wet Chemistry
Ag, Silver (ppm) 67.3 1.70 66.1 68.5 4-Acid Digestion
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Archived

This CRM is no longer available.
Information is provided for reference only.

Specifications