Work Item
ASTM WK94051
Revision of D409/D409M-24 Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method
Rationale
The Tyler RX-29 Ro-Tap is commonly used in the industry in the performance of ASTM D409. It meets "approximate" specification, not meeting the weight requirement. Changes to language making this acceptable equipment, along with other equipment in use, is needed in the standard. Other editorial changes for conformance to form and style requirements will need considered as well.
Work Item Status
Date Initiated: 02-28-2025
Technical Contact: Claudette Young
Item: 000
Ballot:
Status: