Certified Gold Reference Material Product Code G900-7
Certified Gold Reference Material Product Code G900-7
Certified Control Values
50 gram Fire Assay :
Gold Grade 3.22 ppm
Standard Deviation 0.16 ppm
Confidence Interval + / - 0.034 ppm
Aqua Regia Digest :
Gold Grade 3.19 ppm
Standard Deviation 0.20 ppm
Confidence Interval + / - 0.056