OREAS 452

OREAS 452 is a nickel–cobalt laterite certified reference material produced from a blend of mainly limonitic nickel ores sourced predominantly from the Bulong nickel laterite deposit in Western Australia.

The blend incorporates multiple Bulong Ni–Co laterite materials, including primary ore shipments and reprocessed material, supplemented by minor additions of lateritic nickel concentrates and clay-rich components derived from Murrin Murrin and Ravensthorpe laterite systems. These materials were combined to achieve the target nickel and cobalt grades while maintaining matrix consistency.

OREAS 452 has been characterized using the following methods:

  • Borate Fusion XRF- Majors and some traces, including Loss on Ignition (LOI) at 1000 °C
  • Sodium peroxide fusion with full suite elemental package by ICP-OES and/or MS finish
  • Carbon and sulphur by infrared combustion furnace/CS analyser

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.%) 1.05 TBD TBD TBD Borate Fusion XRF
Co, Cobalt (ppm) 800 TBD TBD TBD Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 29.60 TBD TBD TBD Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 3.30 TBD TBD TBD Borate Fusion XRF
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Certificate DataPack SDS NRAM (206 KB)
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