Detail ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM903-13
ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM903-13
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel ( ppm) 24567 859 167 + / - 132
Copper ( ppm) 29077 856 215 + / - 115
Zinc ( ppm) 9340 365 188 + / - 53
Lead ( ppm) 21559 783 181 + / - 115
Cobalt ( ppm) nr nr nr nr
Silver ( ppm) 23.9 1.1 106 + / - 0.2
Sulphur ( % ) 2.42 0.12 92 + / - 0.03
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