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0 E 2242 - 07 <br />TABLE 2 Stadedal Laboratory Analyses <br />Material Number <br />of Labs Analyte Mean Measurement <br />Units Repeatability Standard <br />Deviation (s„ E 691) Reproducibility Standard <br />Deviation (so E 691) Repeatability <br />(r, E 691) RWoduclbility <br />(R, E 691) %R <br />Mine Waste Rock 8 Moisture 18.0 % H'o 0.691 1.31 1.93 3.66 20 <br />Heap Leach Spoils 8 Moisture 11.7 % H2O 0.388 1.11 1.09 3.11 27 <br />Mine Waste Rock 8 Water pH 5.61 pH Not Applicable Not Applicable <br />Heap Leach Spoils 8 Water pH 5.61 pH Not Applicable Not Applicable <br />Mine Waste Rock 8 Effluent pH 2.79 pH 0.0581 0.122 0.157 0.341 12 <br />Heap Leach Spoils 8 Elfluent pH 8.43 pH 0.101 0265 0.282 0.741 9 <br />Mine Waste Rock 8 Etract PH 2.81 pH 0.074 0.142 0206 0.398 14 <br />Heap Leach Spoils 8 Extract PH 8.37 pH 0.101 0.368 0.284 1.030 12 <br />Mine Waste Rock 8 Acidity 506 119/9 44.5 115 125 321 63" <br />Heap Leach Spoils 8 Alkalinity 81.4 Pg/g 10.5 12.4 29.3 34.7 43 <br />Mine Waste Rock 8 Dissolved Solids 1130 119/9 175 262 490 734 65A <br />Heap Leach Spoils 8 Dissolved Solids 671 11109 69.9 79.8 196 224 33 <br />A Not DuantNatlve <br />TABLE 2 SUUsUcal I Laboratory Analy"s <br /> Number Measurement Repeatability Standard Reproducibility Standard Repeatability Reproducibility <br />Material <br />of Labs Anslyte Mean <br />units <br />Deviation (s„ E 691) <br />Deviation (sj, E 691) <br />(r, E 691) <br />(R, E 691) %R <br />Mine Waste Rock 8 Aluminum 43.0 49 3.30 6.83 9.23 19.1 44 <br />Heap Leach Spoils 8 Aluminum 0.0858 W9 0.0464 0.0800 0.13 0.221 258A <br />Heap Leach Spoils 8 Arsenic 0238 49 0.0236 0.0306 0.0860 0.0858 36 <br />Mine Waste Rock 8 Barium 0.0252 N9/9 0.00301 0.00758 0.00843 0.0212 84A <br />Heap Leach Spoils 8 Barium 0.0406 11919 0.0178 0.0303 0.0500 0.0847 209A <br />Heap Leach Spoils 8 Boron 0.323 N9/g 0.0177 0.0368 0.0495 0.103 32 <br />Mine Waste Rock 8 Cobalt 0.0599 119/9 0.0078 0.0105 0.0215 0.0295 49 <br />Heap Leach Spoils 8 Cobalt 0.1020 109/9 0.00921 0.0105 0.0258 0.0295 29 <br />Mine Waste Rock 8 Chromium 0.0953 11919 0.00968 0.0193 0.0271 0.0541 57" <br />Mine Waste Rock 8 Copper 2.38 119/g 0208 0.458 0.581 1.28 54" <br />Mine Waste Rock 8 Iron 39.3 11919 3.31 9.47 9.26 26.53 68^ <br />Heap Leach Spoils 8 Iron 0.148 pg/g 0.0336 0.0401 0.0942 0.112 76A <br />Mine Waste Rock 8 Potassium 5.06 1919 0.890 1.61 2.49 4.5 89" <br />Heap Leach Spoils 8 Potassium 7.01 11919 0281 0.470 0.786 1.32 19 <br />Mine Waste Rock 8 Lithium 0.0804 Pg/9 0.0074 0.0092 0.0207 0.0259 32 <br />Heap Leach Spoils 8 Lithium 0.0495 Pg/9 0.00218 0.00322 0.0061 0.00902 18 <br />Mine Waste Rock 8 Magnesium 18.0 Pg/g 1.37 2.67 3.83 7.49 42 <br />Heap Leach Spoils 8 Magnesium 5.40 N919 0.542 0.542 1.52 1.52 28 <br />Mine Waste Rock 8 Manganese 3.83 Pg/g 0.333 0.589 0.931 1.65 43 <br />Heap Leach Spoils 8 Molybdenum 0.0514 IJWg 0.00347 0.0057 0.0097 0.0159 31 <br />Mine Waste Rock 8 Sodium 5.62 pg/g 121 1.69 3.39 4.73 84^ <br />Heap Leach Spoils 8 Sodium 138 pg/g 7.50 10.7 21.0 29.8 22 <br />Mine Waste Rock 8 Nickel 0245 11919 0.0187 0.0400 0.0529 0.112 46 <br />Mine Waste Rock 8 Lead 2.71 Pg/9 0.117 0.260 0.328 0.727 27 <br />Mine Waste Rock 8 Strontium 0.286 N9/g 0.0276 0.0367 0.0773 0.103 36 <br />Heap Leach Spoils 8 Strontium 0.563 Pg/9 0.0553 0.(653 0.155 0.155 28 <br />Heap Leach Spoils 8 Vanadium 0.0368 P9/9 0.00261 0.00593 0.00731 0.0166 43 <br />Mine Waste Rock a Zinc 21.8 119/9 1.90 3.68 '5.33 10.3 47 <br />A Not QuaMilatiVe <br />12.1.2 Moisture content (10.3), time and temperature used <br />in the determination of the moisture content and results from <br />any analyses performed nn other splits of the laboratory <br />sample; <br />12.1.3 Description of the gross sample, including its physi- <br />cal characteristics and sieve analysis results (10.5); <br />12.1.4 Weight of the test sample on a wet and dry basis; <br />12.1.5 The pH of the water used for the extraction; <br />12.1.6 Water application rate, temperature, extraction time, <br />effluent pH and the final effluent weight; <br />12.1.7 Filter pore size used and filter composition; <br />12.1.8 Use of a centrifuge or pre-filter, the pre-filter pore <br />size and composition; <br />12.1.9 Observations of changes in the test material or <br />leaching solution (11.11); <br />12.1.10 The final weight and pH of the extract, and the <br />results of specific analyses; <br />12.1.11 Moisture content of the residue, time and tempera- <br />ture used in the determination of the moisture content, and <br />results of any analyses performed on the residue; and <br />12.1.12 Dates on which extraction was started and com- <br />pleted, preservation used for extract portions, and dates of <br />analyses. A detailed laboratory worksheet that may be helpful <br />in performing the test method is shown in Fig. 2. <br />13. Precision and Bias <br />13.1 Precision--Eight laboratories cooperated in testing <br />this method and obtained the precision data summarized in <br />Tables 1-3.5 The interlaboratory testing was planned according <br />to Practice E 1601, following Test Plan A for destructive test <br />' Supporting data have been filed at ASTM International Headquarters and may <br />be obtained by requesting Research Report RR: E01-1037. <br />9 <br />• <br />U <br />Copyright by ASTM Int'I (all rights reserved); Thu Jun 26 15:52:01 EDT 2008 <br />Downloaded/printed by <br />Camp Dresser Mc Kee pursuant to License Agreement. No further reproductions authorized.