OREAS 230 reference material
Certified values
Au, ppm0.337
Cu0.0172 %
Material typeGold ore
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 gold ore from the Frogs Leg mine (Western Australia) and barren greenstone.
What it is used for
Inserted into gold sample batches to check fire assay accuracy. A grade of 0.337 ppm suits QC of low-grade samples near cut-off. Certified copper checks the accuracy of copper and gold assays.
Request a quote
Send us your list
We reply the same day with prices, lead times and company details. We correspond in English and Russian.
Phone+7 706 400-63-67
Phone+7 777 723-59-45
WhatsApp+7 706 400-63-67
Hoursdaily 9:00–20:00 (GMT+5)
9 I. Omarov St, Astana, Kazakhstan