Methodology
- 1
QA/QC plan defined before each campaign: certified standards, blanks and duplicates inserted at fixed frequency.
- 2
Documented chain of custody from sample collection to laboratory receipt.
- 3
Selection of certified laboratories and verification of analytical methods.
- 4
Statistical processing of control samples and validation or rejection of assay batches.
Deliverables
QA/QC report with control charts
Validated assay database
Chain-of-custody register
Corrective recommendations per batch
Field case
All U3O8 assays from the Tiferchai area were run under a full QA/QC plan, a prerequisite for using the results in any resource-definition process.