Comment on D. Francois-Bongarcon and P. Gy 'Critical aspects of sampling in mills and plants: a guide to understanding sampling audits' and H. E. Bartlett 'Design of primary samplers for slurries in concentrators and statistical methods for measuring

摘要

The paper (hereinafter BG) by two respected sampling experts contains sound theory and logic that can't be directly refuted. Nevertheless, a practitioner knows that there is a broader context in which the practice of sampling takes place. This broader context, being less well defined than the theory of correct sampling, receives correspondingly less exposure which this commentary - 'prompted by' BG - seeks to rectify. 'Correctness' of a sampler is the central concern of BG, where it is presented as a sharp 'black-and-white' distinction. Accordingly, comments below are grouped under the following headings:Correctness in practiceWithout correctness, what can be done?The broader context.