Certified Reference Material (CRM)

Certified Reference Materials (CRM) are mineral standards used to measure the quality of results in mineral testing laboratories. Westref’s assay standards help our laboratory clients monitor the quality of their fire assay results with the highest level of confidence and amazing value. Certified Reference Material is prepared to ISO Guide 35, analysed by approximately 20 leading labs globally and is independently certified by Australia’s leading statisticians. A certificate is provided with every lot. Customisable options are available upon request. See why Westref has established itself as a trusted name in the industry for over 20 years and ask about our Certified Reference Materials. Custom made standards are available upon request.

  • Prepared to ISO Guide 35 standard
  • Analysed by approx 20 leading laboratories worldwide
  • Independently certified by Australia’s leading statisticians.
  • Certificate provided with every lot
  • Custom made upon requested

Types of Certified Reference Materials:

  • Matrix matched
  • Synthetic
  • Multi element
  • Custom lots made-to-order


  • 2kg air tight plastic jars
  • Aluminium foil sachets
  • Bulk

What are Certified Reference Materials (CRM)?

Certified Reference Materials (commonly known as standards or controls) are fine-tuned batches of chemical materials used to check the accuracy of the equipment used for analysis in mineral testing laboratories. They are used both by commercial labs internally for the calibration their own mineral testing equipment as well as by mining companies as ‘known samples’ to ensure their testing service providers are supplying test results that are of a high degree of accuracy.


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Procurement Lead Perth, Western Australia
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