The importance of sampling is an area which until recently has often been overlooked. Good sampling should always be undertaken in accordance with a well defined sampling strategy to ensure the integrity and consistency of a sample. Laboratories have invested heavily and made huge efforts to reduce errors and improve accuracy in the analytical technique employed. These will be wasted if the sample is not taken in a correct and reproducible manner. Sampling errors are costly as they lead to unnecessary costs in terms of materials and labour. Poor decisions are made based on these analytical results, and the consequence of incorrect results can be significant in many instances.

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