Question:medium

Which of the following quality control practices is essential to detect and correct systematic errors in assay results during mineral resource estimation?

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A standard QA/QC program includes \[ \boxed{ \text{CRMs + Blanks + Duplicates}. } \]

Updated On: Jul 14, 2026

Duplicate sampling only
Insertion of certified reference materials, blanks and field duplicates at regular intervals
Increasing sample size without QA/QC
Relying solely on laboratory internal checks

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The Correct Option is B

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