Detail ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM311-11
ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM311-11
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel ( ppm) 78 nr nr nr
Copper ( ppm) 14504 459 189 + / - 66
Zinc ( ppm) 31115 1314 170 + / - 200
Lead ( ppm) 10730 583 169 + / - 89
Cobalt ( ppm) nr nr nr nr
Silver ( ppm) 19.6 1.9 172 + / - 0.29
Sulphur ( % ) 3.28 0.11 125 + / - 0.02
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