This material is described as a Very High Grade Ore.
This material is light gray in colour.
This product is for use in the mining industry as a reference material for
monitoring and testing the accuracy of laboratory assaying.
All CRMs are dried in an oven for a minimum of 12 hours at 110°C. The dry
material is then pulverised to better than 75 micron (nominal mean of 45 micron)
using an air classifier. The material is then homogenised and stored in a sealed, stable container ready for final packaging.
Materials are statistically sampled from stores, then packaged into either heat
sealed, air tight, plastic pulp packets or screw top sealed plastic containers ready
for distribution. All packaging has been chosen to ensure minimal contamination
from outside sources during shipment, use and storage.
All standards are tested thoroughly in the Geostats bi-annual laboratory survey.
This involves assaying by multiple laboratories from around the world. Results
are compiled into a comprehensive report detailing statistics for each standard.
Assay distributions are checked and processed statistically, producing
monitoring statistics for these standards. Materials are tested regularly to ensure
stability and homogeneity.
This product remains stable in its original packaging, away from direct sunlight.
