Crusher

Density Media Separation

Roll crusher

Roll crusher

Figure $1$: Au processing plant

From Figure $1$ above, draw a table indicating sampling points, type of sample and method of sampling.

$1$

Discuss the importance of sample size determination in metallurgical sampling. How would you determine the appropriate sample size for a specific section of processing plant? Consider the section of interest to be mineral processing section, Smelting section and electrolysis.

Evaluate how Gy$\text{'}$s theory informs the implementation of composite sampling techniques to create representative composite samples for analysis.

Briefly describe the role of quality control $($QC$)$ samples in metallurgical sampling and highlight three key factor to consider when designing a QC program to ensure the reliability of analytical results.

$(8)$