This activity covers the practical application of Natural Deportment characterisation concepts to lab/site based raw data to generate Response Rankings (RR) for a set of samples. Complete the supplied table to calculate a Response Ranking (RR) and Standard Deviation for each sample from the supplied assays and masses.
Activity 1 Notes:
- Calculating sample grade: sum the product of all masses and grades and divide this by total mass
- Mass and Metal Percents are calculated relative to the feed material
- Mass% = fraction mass / feed mass
- Metal% = (fraction grade x fraction mass) / (feed grade x feed mass)
- Cumulative values are calculated from the finest size up
- The Response Factor (RF) for this table is calculated from cumulative metal over cumulative mass
- Sample Response Rankings are calculated by the average
- Standard deviations can be calculated in excel using the '=STDEV()' function