OREAS 80

OREAS 80 is a nickel sulphide Certified Reference Material prepared from a suite of natural ores and geological materials sourced from several world-class mining and exploration operations. The blend incorporates low- and high-grade nickel sulphide ores from Leinster region (Western Australia), supplemented by ultramafic hosted PGE ores from the UG2 Reef (South Africa), and gabbro-norite material from Black Hill (South Australia).

OREAS 80 has been characterized using the following methods:

  • Lithium borate fusion with X-ray fluorescence
  • Full ICP-OES and ICP-MS elemental suites by 4-acid (HNO3-HF-HClO4-HCl) digestion
  • Sodium peroxide fusion or lithium borate fusion with full ICP-OES and ICP-MS suites
  • Sulphur by infrared combustion furnace

Certified values for applicable analytes are operationally defined for each method, with results under OREAS ISO 17034 scope of accreditation.

Note: Analyte values are indicative only and may change when certified.
Analyte Indicative Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Ni, Nickel (wt.%) 0.240 TBD TBD TBD 4-Acid Digestion
Cu, Copper (ppm) 55 TBD TBD TBD 4-Acid Digestion
Cr, Chromium (wt.%) 0.120 TBD TBD TBD 4-Acid Digestion
S, Sulphur (wt.%) 0.310 TBD TBD TBD Infrared Combustion
Co, Cobalt (ppm) 92 TBD TBD TBD 4-Acid Digestion
Downloads
Certificate DataPack SDS NRAM (206 KB)
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Specifications