Detail ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM909-13
ÿ Certified Ore Grade Base Metal Reference Material Product Code GBM909-13
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel ( ppm) 24 nr nr nr
Copper ( ppm) 32093 1295 79 + / - 292
Zinc ( ppm) 68362 2363 67 + / - 581
Lead ( ppm) 8513 327 70 + / - 79
Cobalt ( ppm) nr nr nr nr
Silver ( ppm) 127.3 6.8 66 + / - 1.68
Sulphur ( % ) 18.13 0.60 58 + / - 0.16
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