G918-8 reference material
Certified values
Au, ppm33.57
ManufacturerGeostats
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
Inserted into gold sample batches to check fire assay accuracy. A grade of 33.57 ppm suits QC of very high-grade samples and dilution checks.
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