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About This Item

 

Full Description

Specifies the method for determining the grindability index of hard coal using the Hardgrove machine. It also specifies the procedure for calibrating the test machine and for preparing the standard reference coal samples.
 

Document History

  1. AS 1038.20-2002

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    Coal and coke - Analysis and testing, Part 20: Higher rank coal - Hardgrove grindability index

    • Most Recent
  2. AS 1038.20-1992


    Coal and coke - Analysis and testing, Part 20: Higher rank coal - Hardgrove grindability index

    • Historical Version
  3. AS 1038.20-1981


    Methods for the analysis and testing of coal and coke, Part 20: Hardgrove grindability index of hard coal

    • Historical Version
  4. AS K164-1967


    Method for determining the Hardgrove grindability index of hard coal

    • Historical Version