The term "division" in bulk sampling usually refers to the splitting or splitting of a larger sample into smaller, equal-sized subsamples. This is often done to obtain a manageable amount of material for analysis while maintaining the representativeness of the sample.
Some important points to keep in mind when dividing samples are:
- Representativeness: The division should be carried out in such a way that each subsample is an exact reflection of the original total sample. This means that the subsamples should have the same relative proportion of different materials, particle sizes, moisture levels, etc., as the total sample.
- Contamination avoidance: It is important to ensure that sampling equipment is clean to avoid cross-contamination between samples. The equipment should also be cleaned between samples.
- Size of subsamples: The size of subsamples should be sufficient to allow for accurate analysis, but not so large that they are difficult to handle. The exact size may depend on the specific requirements of the analysis and the characteristics of the bulk material.
- Splitting methods: There are several methods to divide samples, including manual splitting, the use of sample dividers, and automatic devices. The chosen method should be able to provide an accurate and representative subsample.
- Documentation: It is important to accurately document the process of sample division, including the equipment and techniques used, the size and number of subsamples, and other relevant details. This helps to ensure traceability and reproducibility of results.
Overall, the division of bulk samples should be carried out carefully to ensure the representativeness and accuracy of the analysis.