OREAS 923 reference material
Certified values
Cu0.423 %
Ag, ppm1.63
Material typeCopper 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
Copper ore from the CSA mine (Cobar, New South Wales, Australia), part of the OREAS 920–935 series. Gold is not certified.
What it is used for
Inserted into copper sample batches to check the accuracy of copper assays by 4-acid digestion. A grade of Cu 0.423% suits QC of copper ores with similar grades. Gold is not certified in this material.
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