OREAS 238b reference material
Certified values
Au, ppm3.08
Sb, ppm620
Material typeGold ore with antimony
ManufacturerOREAS
Packaging—
Values from the manufacturer's certificate. Exact tolerances (1SD, confidence intervals) are given in the certificate supplied with the pack.
About the material
A blend of high-grade gold ore from the Fosterville mine (Victoria, Australia) and barren metasediments.
What it is used for
Inserted into gold sample batches to check fire assay accuracy. A grade of 3.08 ppm suits QC of high-grade samples.
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