OREAS 352

OREAS 352 is a lead concentrate certified reference material (CRM) prepared and certified by Ore Research & Exploration Pty Ltd. The material constituting OREAS 352 was sourced from the McArthur River Mining operation located in the Gulf of Carpentaria region in the Northern Territory of Australia. The mine is situated about 900 km southeast of Darwin. The major sulphides are pyrite, sphalerite and galena, with lesser chalcopyrite, arsenopyrite and marcasite. 

Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Pb, Lead (wt.%) 58.14 0.142 58.06 58.22 Acid Digestion Titration
Zn, Zinc (wt.%) 2.21 0.056 2.18 2.24 4-Acid Digestion
Ag, Silver (ppm) 9.43 0.666 9.06 9.80 4-Acid Digestion
As, Arsenic (ppm) 112 12 105 119 4-Acid Digestion
Bi, Bismuth (ppm) < 5.00 IND IND IND 4-Acid Digestion
Cd, Cadmium (ppm) 56 2.7 54 57 4-Acid Digestion
Cu, Copper (wt.%) 0.064 0.003 0.062 0.065 4-Acid Digestion
Fe, Iron (wt.%) 0.519 0.025 0.503 0.534 4-Acid Digestion
Mg, Magnesium (wt.%) 0.097 0.007 0.093 0.101 4-Acid Digestion
Sb, Antimony (ppm) 35.0 4.5 31.8 38.1 4-Acid Digestion
Tl, Thallium (ppm) 19.5 0.89 19.0 20.1 4-Acid Digestion
SiO2, Silicon dioxide (wt.%) 3.55 0.147 3.46 3.63 Peroxide Fusion ICP
S, Sulphur (wt.%) 11.18 0.347 10.95 11.41 Infrared Combustion
Downloads
Certificate DataPack SDS NRAM (231 KB)
Archived

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

Specifications