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Reference Materials (RM's)

Reference materials, commonly referred to as "standards", are an important element in exploration and mining best practice. They are samples, with a known grade, made from a specific ore, used as control samples to check results for specific methods from chemical analysis.They have been tested and found fit for their purpose, which can include the calibration of a measurement system, assessment of a measurement procedure, assigning values to other materials and quality control.

They are used to check on:

  • accuracy from individual analyses
  • method bias
  • sample custody procedures
  • sample traceability
  • assay laboratory quality assurance
  • the integrity of the mineral resource database
  • the integrity of the mineral resource estimate