OREAS 991
$34.16
Unit price
/
Unavailable
Description
Description
OREAS 991 is a matrix-matched certified reference material (MMCRM) prepared from copper-gold-silver concentrate samples supplied by Newcrest Mining Limited’s Cadia Valley Operations near Orange, New South Wales, Australia.
|
Analyte
|
Certified Value
|
1SD
|
95% Confidence Limits Low
|
95% Confidence Limits High
|
Method
|
|---|---|---|---|---|---|
| Cu, Copper (wt.%) | 20.66 | 0.053 | 20.59 | 20.73 | Classical Wet Chemistry |
| Au, Gold (ppm) | 47.04 | 0.219 | 46.70 | 47.37 | Pb Fire Assay |
| Ag, Silver (ppm) | 48.1 | 0.90 | 47.2 | 49.1 | 4-Acid Digestion |
