Detail ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM311-12
ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM311-12
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel ( ppm) 673 nr nr nr
Copper ( ppm) 10126 357 196 + / - 50
Zinc ( ppm) 14255 497 176 nr
Lead ( ppm) 3558 164 180 nr
Cobalt ( ppm) nr nr nr nr
Silver ( ppm) 20.5 1.4 180 + / - 0.2
Sulphur ( % ) 4.40 0.15 140 + / - 0.03
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