CRMs That Out Perform The Rest

The OREAS range of 250+ Certified Reference Materials (CRMs) are developed for the mining, exploration and analytical industries covering various commodities, concentrations and mineralisation styles.

All materials are characterised by rigorous inter-laboratory testing programs that adhere to the standards outlined by the International Organisation for Standardisation (ISO) 17034.

We produce 12,000kg batch sizes, providing exceptional continuity of supply, minimising disruptions and changeovers for our customers. Additionally, we have extensive experience preparing Custom (matrix-matched) CRMs from client supplied materials.

Our Certified Reference Materials are made from natural ore materials sourced from deposits across Australia, Southeast Asia, North and South America, and Africa. This includes refractory gold, gold occluded in silicates, and other metals hosted in refractory minerals.

Using natural ore source materials ensures our materials exhibit consistent behaviour with your field samples during sample fusion and digestion. This crucial characteristic maintains the integrity of the analytical process, delivering results that are directly comparable to your field samples.

We guarantee the homogeneity and stability of all materials, providing you with total confidence that any inconsistencies in QC data can be definitively attributed to laboratory measurement error, not sampling error of the CRM.

We are the only manufacturer that both test and provide a guarantee* of homogeneity of gold (and platinum group elements) across all OREAS and custom CRMs irrespective of the presence of coarse gold in the source materials.


*Quality Assurance Guarantee – a coefficient of variation (1RSD) of < 1% when calculated for a typical 30g fire assay using the results from 20 x≤1g INAA results and the Sampling Constant (as per the known relationship between SD and sample mass following Ingamells & Switzer, 1973).

Packaging

Packing options include single-use packets, vacuum or nitrogen packaging, wide mouth plastic jars, plastic buckets and steel drums, catering to various needs and quantities.

Available unit sizes range from 10g to 200kg, with options for custom sizes and labelling, including easily erasable and removable labels.

Our automated packaging machines create single-use units using high barrier foil film, providing effective long-term protection against oxygen and moisture.

All OREAS® CRMs are inherently stable in their final packaging and studies have confirmed that segregation is a negligible concern. For further details, please refer to our technical note.

Confidence In Every Batch

Over 85% of the OREAS range contain full ICP-OES and MS elemental suite certification for at least two different analytical methods with up to 180 analytes certified in a single product. We categorise these materials as SuperCRMs®, offering enhanced flexibility in QC monitoring. They serve as ideal solutions for monitoring pathfinder elements and conducting alteration mapping, and various other ICP applications.

Our OREAS gold ore CRMs contain separate gold certification for numerous analytical methodologies including fire assay, aqua regia digestion, cyanide leach, and PhotonAssay.

To streamline assay monitoring and data handling, each OREAS® CRM is supplied with a downloadable Certificate of Analysis and DataPack, providing complete transparency of the preparation and characterisation process.

OREAS’ ISO 17034 accreditation demonstrates our commitment to quality and our adherence to international standards for competence in reference material production. This translates into greater confidence and consistency for client-generated results.