Detail ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM909-14
ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM909-14
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel ( ppm) 21 nr nr nr
Copper ( ppm) 21898 842 78 + / - 191
Zinc ( ppm) 65582 2291 67 + / - 563
Lead ( ppm) 7039 247 69 + / - 60
Cobalt ( ppm) nr nr nr nr
Silver ( ppm) 96.6 4.9 66 + / - 1.21
Sulphur ( % ) 15.71 0.73 61 + / - 0.19
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