OREAS 921b reference material
Certified values
Cu254 ppm
Material typeCopper-bearing siltstone
ManufacturerOREAS
Packagingjar
Values from the manufacturer's certificate. Exact tolerances (1SD, confidence intervals) are given in the certificate supplied with the pack.
What it is used for
Certified copper checks the accuracy of copper 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