Separate observation from explanation
Record feed conditions, operating settings and measured outputs. Changes in performance can have more than one cause.
MINELIFTER / processing
Make the process question precise.
Organize comminution and separation questions before commissioning testwork.
Prepare representative evidence
Ask the responsible technical team which sampling and testwork are appropriate. Do not infer recovery or product quality from an incomplete description.
Define acceptance before a trial
Agree measurement methods, operating boundaries and review responsibilities with qualified professionals before testing.