ASTM D291/D291M is the ASTM standard for measuring the bulk density of crushed bituminous coal, providing a consistent way to evaluate how much material occupies a given volume. This matters for handling, storage, shipment, and quality-related comparisons where coal density can influence practical calculations and reporting. By using a recognized test method, organizations can support more uniform results and reduce uncertainty when assessing this material.

Overview of ASTM D291/D291M

The Standard Test Method for Bulk Density of Crushed Bituminous Coal defines a technical approach for determining the bulk density of crushed coal in a repeatable manner. As an ASTM standard, it is intended to support consistent testing practices and comparable results across laboratories or facilities. ASTM D291/D291M is especially useful when bulk density is needed for material characterization, inventory estimates, or other measurement-based decisions tied to crushed bituminous coal.

Common use cases of ASTM D291/D291M

This standard is commonly used in coal testing and material control workflows where crushed bituminous coal must be evaluated by volume and mass relationship. It may be applied in laboratories, receiving inspections, or operational settings that handle coal preparation, transfer, or storage. ASTM D291/D291M helps provide a common reference for testing crushed material, supporting more reliable comparisons between batches, suppliers, or measurement events.

Benefits of using ASTM D291/D291M

Using ASTM D291/D291M can improve consistency in bulk density testing and help align results with a recognized ASTM method. That can support compliance efforts, internal quality control, and clearer procurement or acceptance decisions. The standard also helps reduce variability caused by informal measurement practices, which may improve confidence in reported values and make technical communication easier across teams, facilities, and testing programs.

• Bulk density measurement for crushed bituminous coal
• Standardized testing approach
• Support for quality control and reporting
• Useful for handling, storage, and material evaluation