Detail ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM909-12
ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM909-12
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel ( ppm) 23 nr nr nr
Copper ( ppm) 10830 339 75 + / - 78
Zinc ( ppm) 40073 1348 68 + / - 329
Lead ( ppm) 4191 141 71 + / - 34
Cobalt ( ppm) nr nr nr nr
Silver ( ppm) 51.7 3.0 68 + / - 0.73
Sulphur ( % ) 9.91 0.35 60 + / - 0.09
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