Detail ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM913-12
ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM913-12
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel ( ppm) 28 nr nr nr
Copper ( ppm) 1122 nr nr nr
Zinc ( ppm) 72593 2272 108 + / - 435
Lead ( ppm) 22958 891 113 + / - 167
Cobalt ( ppm) nr nr nr nr
Silver ( ppm) 21.8 1.5 110 + / - 0.28
Sulphur ( % ) 7.98 0.26 94 + / - 0.05
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