Certified Gold Reference Material Product Code G398-4
Certified Gold Reference Material Product Code G398-4
Certified Control Values
50 gram Fire Assay :
Gold Grade 0.66 ppm
Standard Deviation 0.05 ppm
Confidence Interval + / - 0.007 ppm
Aqua Regia Digest
Gold Grade 0.64 ppm
Standard Deviation 0.07 ppm
Confidence Interval + / - 0.013 pp