The only CRMs specifically designed for
Chrysos PhotonAssay™

Certified for accuracy, reliability and confidence.

Using pulverised CRMs to analyse crushed samples can create issues with stability, segregation and separation. Discover how using CrushedCRMs™ – Primary establishes a best practice for PhotonAssay™ analysis:

Matched to Sample

Use a crushed CRM to QC a crushed sample analytical method.

Pre – Packaged

Packaged in a Chrysos PhotonAssay™ jar, ready for immediate use.

Independently Certified

Calibration of the method and QC of the method remain separate.

Matched to Sample

CrushedCRM™ – Primary has the same physical and bulk chemical properties as routine samples. The distribution of gold within the material is similar to a typical sample, located within the ~5mm particles.

CrushedCRM™ – Primary is stable. Pulverised gold CRMs can be challenging to pack consistently into the Chrysos PhotonAssay™ jar and  can exhibit variable packing density between jars and within jars over time, causing analytical bias.

CrushedCRM™ – Primary contains minimal fines, resulting in particle stability within the jar and eliminating segregation. The product is specifically designed and engineered with an extremely high within-jar and between-jar homogeneity.

CrushedCRM™ – Primary exhibits repeatable and precise Chrysos PhotonAssay™ jar fill properties and does not stick to the inside of the jar or obscure fill factor measurement.

Pre - Packaged

CrushedCRM™ – Primary is conveniently supplied in pre-weighed Chrysos PhotonAssay™ jars. Immediately ready to use, they are supplied sealed, with a high-fill factor (nearly 100%).

We offer customisable labelling design for easy identification and can ship product directly to laboratory service provider.

Independently Certified

CrushedCRM™ – Primary is certified using a gravimetric method during the manufacturing process. This  provides an estimation of the gold concentration completely independent of either Chrysos PhotoAssay™ or  Fire Assay techniques.

CrushedCRM™ – Primary is manufactured to specific gold grades to cover the full analytical range of routine samples, with targeted grades at cutoff and at low levels where Chrysos PhotonAssay™ precision needs careful monitoring.

For more detailed technical information and to discover how using CrushedCRMs™ Primary can establish a best practice for Chrysos PhotonAssay™ analysis, please contact us.

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