ASTM D75/D75M-19 PDF Download

ASTM D75/D75M-19 is a standard practice for sampling aggregates. The standard emphasizes the importance of sampling in determining the nature and condition of the materials being tested. The sampler is required to take precautions in obtaining samples that accurately represent the materials.

The standard highlights the different purposes for which sampling is conducted, including preliminary investigation, control of production, control of operations at the site of use, and acceptance or rejection of materials. Depending on the purpose, samples are obtained by different parties such as the potential source developer, manufacturer, contractor, or purchaser.

The standard also includes notes and footnotes that provide additional explanations and clarifications. It cautions that the quality of results depends on the competence of personnel performing the procedure and the capability, calibration, and maintenance of equipment. Compliance with the specified guidelines does not guarantee reliable results, and factors such as personnel expertise and equipment performance should be considered.