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ASTM WK25842

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Work Item: ASTM WK25842 - Revision of D409 / D409M - 09 Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method


Active Standard: D409 / D409M - 11a

Developed by Subcommittee: D05.07 | Committee D05 Home | Contact Staff Manager



1. Rationale

New Precision and Bias statement for D 409 based on ILS 047

Keywords

grindability; Hardgrove-Grindability Index (HGI); pulverization; Coal products; Grindability; Hardgrove machine method; Sieve analysis--coal/coke;

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Work Item Status:
Date Initiated:09-28-2009
Technical Contact: Lee Rigsby

Item: 001
Ballot: D05 (11-07)
Status: Ballot Item Approved

Item: 002
Ballot: D05 (11-07)
Status: Ballot Item Approved

Item: 002
Ballot: COS1111
Status: Ballot Item Approved as D409/D409M-2011a and Pending Publication

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