GEOSTATS PTY LTD
GBM311-7
Mining Industry Consultants
Reference Material Manufacture and Sales
Certified Geochem Base Metal Reference Material Product Code
GBM311-7
Certified Control Values
Element Grade Standard Deviation Num of Analyses Confidence Interval
Nickel (ppm) 126 10 139 +/- 1.8
Geostats Pty Ltd, Certified Geochem Base Metal Reference Material, Product Code:
Copper (ppm) 947 44 177 +/- 6.5
Zinc (ppm) 452 34 173 +/- 5.1
Lead (ppm) 134 11 164 +/- 1.7
Arsenic (ppm) 830 50 143 +/- 8.3
Cobalt (ppm) 28 3 138 +/- 0.4
Silver (ppm) 2.0 0.3 146 +/- 0.05
CRM Details
Neutron Activation Major Elements by
Control Statistic Details Analysis Results (ppm, Fusion / XRF (%)
Control statistics were produced from results accumulated in the April-2011 & unless otherwise noted)
October-2011 round robins. The number of results used to certify each analyte is Antimony 12.45 Fe 6.27
shown in the table above. Arsenic 825 SiO2 60.13
Barium 420 Al2O3 12.85
Material Description Bromine <0.5 TiO2 0.731
This material is described as a Copper Gold ore. Cadmium <5 MnO 0.095
Caesium 5.425 CaO 4.115
Calcium (%) nr P 0.049
Colour Designation (ISCC-NBS, SP440) Cerium 45.25 S 1.12
This material is pale yellowish brown in colour. Chromium 155 MgO 2.035
Cobalt 31.5 K2O 2.695
Usage Europium 0.861 Na2O 2.243
This product is for use in the mining industry as a reference material for Gold (ppb) 3770 LOI1000 4.15
monitoring and testing the accuracy of laboratory assaying. Hafnium 3.6
Iridium (ppb) <20 Neutron Activation
Preparation and Packaging Iron (%) 6.285 Analyses and Fusion /
All CRMs are dried in an oven for a minimum of 12 hours at 110°C. The dry Lanthanum 23.5 XRF Analyses are
material is then pulverised to better than 75 micron (nominal mean of 45 micron) Lutetium 0.41 single results and are
using an air classifier. The material is then homogenised and stored in a sealed, Mercury nr indicative only. These
stable container ready for final packaging. Molybdenum 13.55 are provided for matrix
Neodymium nr identification
Materials are statistically sampled from stores, then packaged into either heat Nickel 130.5 purposes.
sealed, air tight, plastic pulp packets or screw top sealed plastic containers ready Potassium (%) nr
for distribution. All packaging has been chosen to ensure minimal contamination Rubidium 117.5 'nr': Not Reported
from outside sources during shipment, use and storage. Samarium 4.13
Scandium 18.25
Assay Testwork Selenium <5
All standards are tested thoroughly in the Geostats bi-annual laboratory survey. Silver 1.5
This involves assaying by multiple laboratories from around the world. Results are Sodium (%) 1.585
compiled into a comprehensive report detailing statistics for each standard. Assay Strontium nr
distributions are checked and processed statistically, producing monitoring Tantalum 1.425
statistics for these standards. Materials are tested regularly to ensure stability and Tellurium <5
homogeneity. Terbium 0.522
Thorium 11.25
Stability Tin <100
This product remains stable in its original packaging, away from direct sunlight. Tungsten 24.85
Uranium 6.815
Material Safety Ytterbium 2.4
This product is not hazardous and non-toxic. Zinc 485
Zirconium <400
20 Hines Road, O'Connor, Western Australia 6163
Phone : +61 8 9314 2566, Fax : +61 8 9314 3699
e-mail : pjh@geostats.com.au, srr@geostats.com.au
Website http://www.geostats.com.au
