A-Collaborative-Framework-to-Ensure-Availability-of-Certified-Reference-Materials-for-Precious-Metal-Refineries-AR25.pdf

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1、A Collaborative Framework:Ensuring Availability for Certified Reference Materials for PGM Refineriesby Hannelie de BeerPresentation FlowTHE PROBLEMTHE PROBLEM1234The Challenge ofMetrologicalTraceabilityStandard RequirementsISO 17025:2017 requires analytical results traceable to the SI system.The Cha

2、llenge of Metrological TraceabilityUses of CRMsCertified Reference Materials(CRMs)are essential for:Method validationInstrument calibrationEnsuring result reliability and accuracyTraceability links results to SI units,ensuring accuracy and reproducibility.CRMs are vital benchmarks for labs,supportin

3、g quality assurance in industries like precious metal refining,where precision is critical.Limited Availabilityof Refinery-GradeCRMsThere are CRMs available for bullion and high-purity PGM sponges,however they are scarce.Reasons for scarcity for refinery feed grades and intermediates is due to:These

4、 issues limit access to CRM causing challenges to demonstrate traceability and analytical quality control.This gap drives the need for innovative solutions.1Non-conformity in refining processes2High monetary value of precious metals3Proprietary nature of feed materials and technologyLimited Availabi

5、lityof Refinery-Grade CRMsA SolutionEmerges8 years ago:Rand Refinery sought help for a loaded carbon CRM.A Solution EmergesAs an ISO 17043 accredited facility,we applied PT methodologies.Now:Qotho is ISO 17034 accredited,expanding CRM production.Outcome:Successful in-houseExpandingthe ScopeIn late 2

6、024,Rand Refinery sought collaboration to produce higher-grade in-feed material CRMs,aiming to optimise refining efficiency and analytical compliance.Expandingthe ScopeGoalPrepare and certify materials to meet industry needs.MotivationAddressing a critical gap in this mineral sector.THE CASE STUDYTH