Certified Geochem Base Metal Reference Material Product Code GBM313-2

Certified Geochem Base Metal Reference Material Product Code GBM313-2 Certified Control Values Total Digest Element Grade Standard Deviation Num of Analyses Confidence Interval Nickel ( ppm) 42 6 59 + / - 1.6 Copper ( ppm) 8049 236 59 + / - 62.1 Zinc ( ppm) 10891 542 56 + / - 146.5 Lead ( ppm) 8219 378 55 + / - 103.2 Arsenic ( ppm) 157 12 47 + / - 3.7 Cobalt ( ppm) 43 5 60 + / - 1.3 Silver ( ppm) 205.5 10.1 49 + / - 2.94 Partial Digest Element Grade Standard Deviation Num of Analyses Confidence Interval Nickel ( ppm) 26 3 39 + / - 1.1 Copper ( ppm) 8186 318 62 + / - 81.4 Zinc ( ppm) 11016 419 48 + / - 123.1 Lead ( ppm) 8271 343 52 + / - 96.5 Arsenic ( ppm) 162 23 55 + / - 6.2 Cobalt ( ppm) 31 7 50 + / - 2 Silver ( ppm) 207.3 10.8 53 + / - 3