ASTM D409

Grindability of Coal by the Hardgrove-Machine Method

Applicability: ASTM D409 is applicable for determining the relative ease of pulverization of coal samples. This test method provides a standardized approach to assess how readily coal can be ground into smaller particles, a critical factor for various industrial applications.

Purpose: ASTM D409 is a standard test method that determines the relative grindability of coal using the Hardgrove-Machine Method. It provides a measurement of how easily coal can be pulverized, which is crucial for processes like combustion, coke-making, and other coal-related industries.