Specifications
-
CRM State:
-
Matrix:
-
Mineralisation:
OREAS 99b
OREAS 99b is a copper-silver concentrate certified reference material
(CRM) prepared and certified by Ore Research & Exploration for copper,
silver, iron, sulphur, bismuth, cobalt, lead, antimony, selenium, tin and zinc.
The material used to prepare OREAS 99b was sourced from the CSA mine in Cobar,
New South Wales. Ten commercial laboratories participated in the analytical
program to characterise copper, silver, iron, sulphur, bismuth, cobalt, lead,
antimony, selenium, tin and zinc in OREAS 99b. Ten umpire laboratories also
determined copper and silver by ‘classical’ methods.
| Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
|---|---|---|---|---|---|
| Cu, Copper (wt.%) | 28.90 | 0.100 | 28.83 | 28.97 | Classical Wet Chemistry |
| Ag, Silver (ppm) | 81.1 | 2.50 | 79.2 | 83.1 | Classical Wet Chemistry |
| S, Sulphur (wt.%) | 31.60 | 0.700 | 30.90 | 32.30 | Infrared Combustion |
| Ag, Silver (ppm) | 77.0 | 3.20 | 74.4 | 79.6 | 4-Acid Digestion |
| Bi, Bismuth (ppm) | 215 | 24 | 197 | 233 | 4-Acid Digestion |
| Co, Cobalt (ppm) | 157 | 18 | 144 | 170 | 4-Acid Digestion |
| Cu, Copper (wt.%) | 28.90 | 0.680 | 28.43 | 29.37 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 30.18 | 2.010 | 28.62 | 31.74 | 4-Acid Digestion |
| Pb, Lead (ppm) | 619 | 23 | 606 | 633 | 4-Acid Digestion |
| S, Sulphur (wt.%) | 30.80 | 0.500 | 30.00 | 31.60 | 4-Acid Digestion |
| Sb, Antimony (ppm) | 21.0 | 5.0 | 17.0 | 24.0 | 4-Acid Digestion |
| Se, Selenium (ppm) | 321 | 48 | 284 | 358 | 4-Acid Digestion |
| Sn, Tin (ppm) | 342 | 44 | 308 | 377 | 4-Acid Digestion |
| Zn, Zinc (wt.%) | 0.220 | 0.014 | 0.209 | 0.230 | 4-Acid Digestion |
| Ag, Silver (ppm) | 78.6 | 1.80 | 77.0 | 80.1 | Aqua Regia Digestion |
| Bi, Bismuth (ppm) | 209 | 14 | 199 | 219 | Aqua Regia Digestion |
| Co, Cobalt (ppm) | 142 | 13 | 129 | 154 | Aqua Regia Digestion |
| Cu, Copper (wt.%) | 28.74 | 0.780 | 28.12 | 29.36 | Aqua Regia Digestion |
| Fe, Iron (wt.%) | 31.08 | 0.950 | 30.19 | 31.97 | Aqua Regia Digestion |
| Pb, Lead (ppm) | 625 | 83 | 558 | 691 | Aqua Regia Digestion |
| S, Sulphur (wt.%) | 29.90 | 2.200 | 27.10 | 32.70 | Aqua Regia Digestion |
| Sb, Antimony (ppm) | ~20.0 | Aqua Regia Digestion | |||
| Se, Selenium (ppm) | 268 | 36 | 237 | 299 | Aqua Regia Digestion |
| Sn, Tin (ppm) | 328 | 52 | 277 | 379 | Aqua Regia Digestion |
| Zn, Zinc (wt.%) | 0.216 | 0.024 | 0.195 | 0.238 | Aqua Regia Digestion |
Downloads
Certificate DataPack SDS NRAM (412 KB)Specifications
-
CRM State:
-
Matrix:
-
Mineralisation:
-
CRM Group(s):